(1) ³y− 2
3 ´2
(2) (x−1) ³
x+ 1 2
´
(3) ³b+ 1 3
´ ³
b+ 3 2
´
(4) ³x− 8
3 ´ ³
x+ 8 3
´
(5) ³x− 4
3 ´ ³
x+ 8 3
´
(6) ³x+ 5 2
´
(x+ 1)
(7) ³x− 5
3 ´ ³
x+ 5 3
´
(8) ³y− 1
5 ´ ³
y− 4
3 ´
(9) ³a+ 3 2
´ ³
a− 6
5 ´
(10) ³x+ 5 4
´ ³
x+ 4 3
´
(11) (4x+ 1)2 (12) ³3b− 8
3 ´ ³
3b+ 8 3
´
(13) (3y−3) (3y+ 2) (14) ³
2x− 5
3 ´ ³
2x+ 5 2
´
(15) (3x+ 3)³3x− 5
2 ´
(16) ³3x+ 8 5
´ ³
3x+ 3 5
´
(17) ³5x+ 8 3
´
(5x−2) (18) ³2x− 1
4 ´ ³
2x− 1
5 ´
(1) ³y− 2
3 ´2
=
y
2−
4
3
y
+
4
9
(2) (x−1) ³x+ 1 2
´
=
x
2−
1
2
x
−
1
2
(3) ³b+ 1 3
´ ³
b+ 3 2
´
=
b
2+
11
6
b
+
1
2
(4) ³x− 8
3 ´ ³
x+ 8 3
´
=
x
2−
64
9
(5) ³x− 4
3 ´ ³
x+ 8 3
´
=
x
2+
4
3
x
−
32
9
(6)³
x+ 5 2
´
(x+ 1)
=
x
2+
7
2
x
+
5
2
(7) ³x− 5
3 ´ ³
x+ 5 3
´
=
x
2−
25
9
(8)³
y− 1
5 ´ ³
y− 4
3 ´
=
y
2−
23
15
y
+
4
15
(9) ³a+ 3 2
´ ³
a− 6
5 ´
=
a
2+
3
10
a
−
9
5
(10) ³x+ 5 4
´ ³
x+ 4 3
´
=
x
2+
31
12
x
+
5
3
(11) (4x+ 1)2
= 16
x
2+ 8
x
+ 1
(12) ³3b− 8
3 ´ ³
3b+ 8 3
´
= 9
b
2−
64
9
(13) (3y−3) (3y+ 2)
= 9
y
2−
3
y
−
6
(14) ³2x− 5
3 ´ ³
2x+ 5 2
´
= 4
x
2+
5
3
x
−
25
6
(15) (3x+ 3)³3x− 5
2 ´
= 9
x
2+
3
2
x
−
15
2
(16) ³3x+ 8 5
´ ³
3x+ 3 5
´
= 9
x
2+
33
5
x
+
24
25
(17) ³5x+ 8 3
´
(5x−2)
= 25
x
2+
10
3
x
−
16
3
(18) ³2x− 1
4 ´ ³
2x− 1
5 ´
= 4
x
2−
9
10
x
+
1
20
(1) ³a− 4
3 ´ ³
a+ 4 3
´
(2) ³y− 3
2 ´ ³
y+ 3 2
´
(3) ³x− 5
3 ´ ³
x− 5
2 ´
(4) ³b+ 8 3
´ ³
b− 2
3 ´
(5) ³x+ 7 2
´ ³
x− 7
2
´ (6)
(a−2) (a+ 2)
(7) (x−1) (x+ 1) (8) ³x+ 7
2 ´ ³
x+ 7 3
´
(9) (a−1)³a− 7
5 ´
(10) ³x+ 5 4
´
(x−4)
(11) ³4y+ 1 3
´
(4y+ 2) (12) (5a+ 2)³5a+ 1 3
´
(13) ³3x+ 7 2
´ ³
3x+ 7 3
´
(14) ³3b− 5
2 ´2
(15) ³4x+ 1 3
´ ³
4x− 1
3 ´
(16) ³3y− 5
4 ´ ³
3y+ 7 3
´
(17) (4y−3)³4y− 7
2 ´
(18) ³3b+ 3 5
´ ³
3b+ 7 5
´
(19) (3b−3)³3b− 7
4 ´
(20) (4x−1)³4x− 3
(1) ³a− 4
3 ´ ³
a+ 4 3
´
=
a
2−
16
9
(2)³
y− 3
2 ´ ³
y+ 3 2
´
=
y
2−
9
4
(3) ³x− 5
3 ´ ³
x− 5
2 ´
=
x
2−
25
6
x
+
25
6
(4) ³b+ 8 3
´ ³
b− 2
3 ´
=
b
2+ 2
b
−
16
9
(5) ³x+ 7 2
´ ³
x− 7
2 ´
=
x
2−
49
4
(6) (a−2) (a+ 2)
=
a
2−
4
(7) (x−1) (x+ 1)
=
x
2−
1
(8)³
x+ 7 2
´ ³
x+ 7 3
´
=
x
2+
35
6
x
+
49
6
(9) (a−1)³a− 7
5 ´
=
a
2−
12
5
a
+
7
5
(10) ³x+ 5 4
´
(x−4)
=
x
2−
11
4
x
−
5
(11) ³4y+ 1 3
´
(4y+ 2)
= 16
y
2+
28
3
y
+
2
3
(12) (5a+ 2)³5a+ 1 3
´
= 25
a
2+
35
3
a
+
2
3
(13) ³3x+ 7 2
´ ³
3x+ 7 3
´
= 9
x
2+
35
2
x
+
49
6
(14) ³3b− 5
2 ´2
= 9
b
2−
15
b
+
25
4
(15) ³4x+ 1 3
´ ³
4x− 1
3 ´
= 16
x
2−
1
9
(16)³
3y− 5
4 ´ ³
3y+ 7 3
´
= 9
y
2+
13
4
y
−
35
12
(17) (4y−3)³4y− 7
2 ´
= 16
y
2−
26
y
+
21
2
(18) ³3b+ 3 5
´ ³
3b+ 7 5
´
= 9
b
2+ 6
b
+
21
25
(19) (3b−3)³3b− 7
4 ´
= 9
b
2−
57
b
+
21
(20) (4x−1)³4x− 3
2 ´
= 16
x
2(1) ³x+ 7 2
´
(x+ 1) (2) ³b+ 7
2 ´2
(3) (x−3) (x+ 3) (4) (b−4)2
(5) ³x− 8
3 ´ ³
x+ 4 3
´
(6) ³b− 5
3 ´ ³
b+ 3 2
´
(7) (x−3)³x+ 1 3
´
(8) (x−4)³x− 1
3 ´
(9) (b+ 2)2 (10) (a+ 1)2
(11) (5x+ 4) (5x−4) (12) (4x−2) (4x+ 2)
(13) ³2x− 7
3 ´ ³
2x− 5
3 ´
(14) ³4x+ 1 2
´ ³
4x− 1
2 ´
(15) (3a+ 3)³3a+ 7 3
´
(16) ³3b+ 5 4
´ ³
3b− 8
5 ´
(17) ³5x− 6
5 ´ ³
5x− 3
5 ´
(18) ³5x− 6
5 ´
(5x+ 4)
(19) ³3a− 1
5 ´ ³
3a+ 1 5
´
(20) (2x+ 2)³2x− 7
(1) ³x+ 7 2
´
(x+ 1)
=
x
2+
9
2
x
+
7
2
(2)³
b+ 7 2
´2
=
b
2+ 7
b
+
49
4
(3) (x−3) (x+ 3)
=
x
2−
9
(4) (b−4)2=
b
2−
8
b
+ 16
(5) ³x− 8
3 ´ ³
x+ 4 3
´
=
x
2−
4
3
x
−
32
9
(6)³
b− 5
3 ´ ³
b+ 3 2
´
=
b
2−
1
6
b
−
5
2
(7) (x−3)³x+ 1 3
´
=
x
2−
8
3
x
−
1
(8) (x−4) ³x− 1
3 ´
=
x
2−
13
3
x
+
4
3
(9) (b+ 2)2
=
b
2+ 4
b
+ 4
(10) (a+ 1)2=
a
2+ 2
a
+ 1
(11) (5x+ 4) (5x−4)
= 25
x
2−
16
(12) (4x−2) (4x+ 2)= 16
x
2−
4
(13) ³2x− 7
3 ´ ³
2x− 5
3 ´
= 4
x
2−
8
x
+
35
9
(14) ³4x+ 1 2
´ ³
4x− 1
2 ´
= 16
x
2−
1
4
(15) (3a+ 3)³3a+ 7 3
´
= 9
a
2+ 16
a
+ 7
(16) ³3b+ 5 4
´ ³
3b− 8
5 ´
= 9
b
2−
21
20
b
−
2
(17) ³5x− 6
5 ´ ³
5x− 3
5 ´
= 25
x
2−
9
x
+
18
25
(18) ³5x− 6
5 ´
(5x+ 4)
= 25
x
2+ 14
x
−
24
5
(19) ³3a− 1
5 ´ ³
3a+ 1 5
´
= 9
a
2−
1
25
(20)(2x+ 2)³2x− 7
2 ´
= 4
x
2(1) ³b+ 7 3
´
(b−1) (2) (x+ 4) (x−3)
(3) ³x+ 7 3
´2 (4) (x+ 4) (x
−2)
(5) (x−4) (x−1) (6) (a
−1) ³
a+ 7 3
´
(7) ³y+ 3 2
´ ³
y− 3
2 ´
(8) ³a− 3
2 ´ ³
a+ 3 2
´
(9) ³x− 7
3 ´ ³
x+ 1 2
´
(10) (b−1)³b+ 8 5
´
(11) (2x−2) (2x+ 2) (12) ³4b+ 2
3 ´
(4b+ 3)
(13) (3a+ 2)³3a− 7
2
´ (14)
(3x−2) (3x+ 1)
(15) (5x−3)2 (16) ³4a− 5
4 ´ ³
4a+ 5 4
´
(17) ³3y+ 1 2
´ ³
3y− 1
2 ´
(18) ³3a+ 3 2
´
(3a−2)
(19) ³4y+ 7 3
´ ³
4y− 7
3 ´
(20) ³4x+ 8 3
´ ³
4x− 8
(1) ³b+ 7 3
´
(b−1)
=
b
2+
4
3
b
−
7
3
(2) (x+ 4) (x−3)
=
x
2+
x
−
12
(3) ³x+ 7 3
´2
=
x
2+
14
3
x
+
49
9
(4) (x+ 4) (x−2)
=
x
2+ 2
x
−
8
(5) (x−4) (x−1)
=
x
2−
5
x
+ 4
(6) (a −1)³
a+ 7 3
´
=
a
2+
4
3
a
−
7
3
(7) ³y+ 3 2
´ ³
y− 3
2 ´
=
y
2−
9
4
(8)³
a− 3
2 ´ ³
a+ 3 2
´
=
a
2−
9
4
(9) ³x− 7
3 ´ ³
x+ 1 2
´
=
x
2−
11
6
x
−
7
6
(10) (b−1) ³b+ 8 5
´
=
b
2+
3
5
b
−
8
5
(11) (2x−2) (2x+ 2)
= 4
x
2−
4
(12) ³4b+ 2 3
´
(4b+ 3)
= 16
b
2+
44
3
b
+ 2
(13) (3a+ 2)³3a− 7
2 ´
= 9
a
2−
9
2
a
−
7
(14) (3x−2) (3x+ 1)
= 9
x
2−
3
x
−
2
(15) (5x−3)2
= 25
x
2−
30
x
+ 9
(16) ³4a− 5
4 ´ ³
4a+ 5 4
´
= 16
a
2−
25
16
(17) ³3y+ 1 2
´ ³
3y− 1
2 ´
= 9
y
2−
1
4
(18)³
3a+ 3 2
´
(3a−2)
= 9
a
2−
3
2
a
−
3
(19) ³4y+ 7 3
´ ³
4y− 7
3 ´
= 16
y
2−
49
9
(20)³
4x+ 8 3
´ ³
4x− 8
3 ´
= 16
x
2−
(1) ³x− 5
3 ´ ³
x+ 5 3
´
(2) ³b− 1
2 ´
(b+ 2)
(3) ³x− 1
3 ´ ³
x+ 8 3
´
(4) ³y− 7
3 ´ ³
y− 2
3 ´
(5) (x+ 2)³x+ 1 2
´
(6) ³y+ 2 5
´ ³
y− 8
5 ´
(7) (a+ 3)³a+ 3 2
´ (8)
(a−3) (a+ 3)
(9) ³x− 1
4 ´ ³
x− 5
4 ´
(10) ³x− 3
4 ´ ³
x+ 3 4
´
(11) (2x+ 3) (2x−3) (12) ³4a − 1
3 ´
(4a+ 1)
(13) (3b+ 3)³3b− 1
2 ´
(14) ³3x− 8
3 ´
(3x−2)
(15) (4b+ 4)2 (16) ³4a+ 3
5 ´ ³
4a− 3
4 ´
(17) ³4y− 3
2 ´ ³
4y+ 7 4
´
(18) ³2a− 3
5 ´ ³
2a+ 1 3
´
(19) (4a+ 2)³4a− 6
5 ´
(20) ³2b− 6
5 ´ ³
2b+ 8 5
(1) ³x− 5
3 ´ ³
x+ 5 3
´
=
x
2−
25
9
(2)³
b− 1
2 ´
(b+ 2)
=
b
2+
3
2
b
−
1
(3) ³x− 1
3 ´ ³
x+ 8 3
´
=
x
2+
7
3
x
−
8
9
(4) ³y− 7
3 ´ ³
y− 2
3 ´
=
y
2−
3
y
+
14
9
(5) (x+ 2)³x+ 1 2
´
=
x
2+
5
2
x
+ 1
(6)³
y+ 2 5
´ ³
y− 8
5 ´
=
y
2−
6
5
y
−
16
25
(7) (a+ 3)³a+ 3 2
´
=
a
2+
9
2
a
+
9
2
(8) (a−3) (a+ 3)
=
a
2−
9
(9) ³x− 1
4 ´ ³
x− 5
4 ´
=
x
2−
3
2
x
+
5
16
(10) ³x− 3
4 ´ ³
x+ 3 4
´
=
x
2−
9
16
(11) (2x+ 3) (2x−3)
= 4
x
2−
9
(12) ³4a− 1
3 ´
(4a+ 1)
= 16
a
2+
8
3
a
−
1
3
(13) (3b+ 3)³3b− 1
2 ´
= 9
b
2+
15
2
b
−
3
2
(14)³
3x− 8
3 ´
(3x−2)
= 9
x
2−
14
x
+
16
3
(15) (4b+ 4)2
= 16
b
2+ 32
b
+ 16
(16) ³4a+ 35 ´ ³
4a− 3
4 ´
= 16
a
2−
3
5
a
−
9
20
(17) ³4y− 3
2 ´ ³
4y+ 7 4
´
= 16
y
2+
y
−
21
8
(18) ³2a− 3
5 ´ ³
2a+ 1 3
´
= 4
a
2−
8
15
a
−
1
5
(19) (4a+ 2)³4a− 6
5 ´
= 16
a
2+
16
a
−
12
(20) ³2b− 6
5 ´ ³
2b+ 8 5
´
= 4
b
2+
4
b
−
(1) (x−4)2 (2) ³y+ 7 3
´
(y+ 2)
(3) ³x− 1
3 ´ ³
x+ 3 2
´
(4) (y+ 1)³y− 5
3 ´
(5) ³x+ 4 3
´
(x+ 1) (6) ³x− 5
2 ´ ³
x+ 5 2
´
(7) ³b+ 4 5
´ ³
b+ 3 4
´
(8) ³x+ 3 2
´2
(9) ³x+ 1 4
´
(x+ 4) (10) ³x− 8
5 ´ ³
x− 7
4 ´
(11) (3y−4) (3y−2) (12) ³5x+ 8
3 ´ ³
5x+ 1 3
´
(13) (2x+ 4)³2x− 5
3 ´
(14) ³3x− 4
3 ´2
(15) ³5x+ 7 2
´ ³
5x− 7
2 ´
(16) ³4x+ 1 2
´ ³
4x− 2
3 ´
(17) (2x−2) (2x−1) (18) ³
2x+ 4 5
´2
(19) ³4x+ 1 3
´2
(20) ³3x+ 8 5
´ ³
3x− 5
(1) (x−4)2
=
x
2−
8
x
+ 16
(2) ³y+ 7 3
´
(y+ 2)
=
y
2+
13
3
y
+
14
3
(3) ³x− 1
3 ´ ³
x+ 3 2
´
=
x
2+
7
6
x
−
1
2
(4) (y+ 1) ³y− 5
3 ´
=
y
2−
2
3
y
−
5
3
(5) ³x+ 4 3
´
(x+ 1)
=
x
2+
7
3
x
+
4
3
(6)³
x− 5
2 ´ ³
x+ 5 2
´
=
x
2−
25
4
(7) ³b+ 4 5
´ ³
b+ 3 4
´
=
b
2+
31
20
b
+
3
5
(8) ³x+ 3 2
´2
=
x
2+ 3
x
+
9
4
(9) ³x+ 1 4
´
(x+ 4)
=
x
2+
17
4
x
+ 1
(10) ³x− 8
5 ´ ³
x− 7
4 ´
=
x
2−
67
20
x
+
14
5
(11) (3y−4) (3y−2)
= 9
y
2−
18
y
+ 8
(12) ³5x+ 8 3
´ ³
5x+ 1 3
´
= 25
x
2+ 15
x
+
8
9
(13) (2x+ 4)³2x− 5
3 ´
= 4
x
2+
14
3
x
−
20
3
(14) ³3x− 4
3 ´2
= 9
x
2−
8
x
+
16
9
(15) ³5x+ 7 2
´ ³
5x− 7
2 ´
= 25
x
2−
49
4
(16)³
4x+ 1 2
´ ³
4x− 2
3 ´
= 16
x
2−
2
3
x
−
1
3
(17) (2x−2) (2x−1)
= 4
x
2−
6
x
+ 2
(18) ³2x+ 4 5´2
= 4
x
2+
16
5
x
+
16
25
(19) ³4x+ 1 3
´2
= 16
x
2+
8
3
x
+
1
9
(20)³
3x+ 8 5
´ ³
3x− 5
4 ´
(1) (a−2) ³
a+ 2 3
´
(2) (x+ 1)2
(3) (x−3)³x+ 7 3
´
(4) ³x+ 1 2
´ ³
x− 8
3 ´
(5) ³a− 7
3 ´ ³
a+ 7 3
´
(6) ³b+ 6 5
´2
(7) ³x− 3
2 ´ ³
x− 7
3 ´
(8) ³x+ 1 5
´ ³
x− 1
5 ´
(9) ³x− 2
5 ´ ³
x− 5
4 ´
(10) (a+ 1)2
(11) ³4x+ 7 3
´2
(12) ³4y+ 8 3
´ ³
4y− 8
3 ´
(13) (5x+ 3) (5x+ 2) (14) (5x+ 1)³
5x− 5
2 ´
(15) (4x−1) (4x+ 1) (16) ³
4b+ 7 4
´ ³
4b+ 7 2
´
(17) ³5y+ 5 2
´
(5y−4) (18) ³5x+ 2
5 ´
(5x−4)
(19) ³3x+ 7 2
´ ³
3x+ 2 5
´
(20) ³3x− 3
2 ´
(1) (a−2) ³
a+ 2 3
´
=
a
2−
4
3
a
−
4
3
(2) (x+ 1)2
=
x
2+ 2
x
+ 1
(3) (x−3)³x+ 7 3
´
=
x
2−
2
3
x
−
7
(4)³
x+ 1 2
´ ³
x− 8
3 ´
=
x
2−
13
6
x
−
4
3
(5) ³a− 7
3 ´ ³
a+ 7 3
´
=
a
2−
49
9
(6)³
b+ 6 5
´2
=
b
2+
12
5
b
+
36
25
(7) ³x− 3
2 ´ ³
x− 7
3 ´
=
x
2−
23
6
x
+
7
2
(8)³
x+ 1 5
´ ³
x− 1
5 ´
=
x
2−
1
25
(9) ³x− 2
5 ´ ³
x− 5
4 ´
=
x
2−
33
20
x
+
1
2
(10) (a+ 1)2
=
a
2+ 2
a
+ 1
(11) ³4x+ 7 3
´2
= 16
x
2+
56
3
x
+
49
9
(12) ³4y+ 8 3
´ ³
4y− 8
3 ´
= 16
y
2−
64
9
(13) (5x+ 3) (5x+ 2)
= 25
x
2+ 25
x
+ 6
(14) (5x+ 1)³5x− 5
2 ´
= 25
x
2−
15
2
x
−
5
2
(15) (4x−1) (4x+ 1)
= 16
x
2−
1
(16) ³4b+ 74 ´ ³
4b+ 7 2
´
= 16
b
2+ 21
b
+
49
8
(17) ³5y+ 5 2
´
(5y−4)
= 25
y
2−
15
2
y
−
10
(18) ³5x+ 2 5
´
(5x−4)
= 25
x
2−
18
x
−
8
5
(19) ³3x+ 7 2
´ ³
3x+ 2 5
´
= 9
x
2+
117
x
+
7
(20) ³3x− 3
2 ´
(3x+ 3)
= 9
x
2+
9
2
x
−
(1) ³a+ 8 3
´ ³
a− 8
3 ´
(2) ³x− 1
2 ´ ³
x+ 1 2
´
(3) ³y+ 2 3
´
(y+ 3) (4) ³x+ 7
3 ´ ³
x− 1
2 ´
(5) (b−3) (b+ 1) (6) ³
x+ 7 3
´ ³
x− 5
4 ´
(7) ³b− 5
2 ´ ³
b+ 5 2
´
(8) ³a+ 1 3
´2
(9) (a+ 4) (a−4) (10) ³
y+ 3 2
´ ³
y+ 3 4
´
(11) ³3y− 1
3 ´2
(12) ³5a+ 1 2
´ ³
5a+ 1 3
´
(13) (2x−3)³2x+ 5 2
´
(14) ³4y− 1
2 ´ ³
4y− 5
2 ´
(15) ³5x− 7
2 ´ ³
5x+ 8 3
´
(16) ³2a+ 8 5
´ ³
2a+ 1 2
´
(17) ³4b− 4
3 ´2
(18) ³4x− 7
3 ´ ³
4x+ 3 4
´
(19) ³5y+ 7 3
´2
(20) ³5a+ 8 5
´ ³
5a− 8
(1) ³a+ 8 3
´ ³
a− 8
3 ´
=
a
2−
64
9
(2)³
x− 1
2 ´ ³
x+ 1 2
´
=
x
2−
1
4
(3) ³y+ 2 3
´
(y+ 3)
=
y
2+
11
3
y
+ 2
(4) ³x+ 7 3
´ ³
x− 1
2 ´
=
x
2+
11
6
x
−
7
6
(5) (b−3) (b+ 1)
=
b
2−
2
b
−
3
(6) ³x+ 7 3
´ ³
x− 5
4 ´
=
x
2+
13
12
x
−
35
12
(7) ³b− 5
2 ´ ³
b+ 5 2
´
=
b
2−
25
4
(8)³
a+ 1 3
´2
=
a
2+
2
3
a
+
1
9
(9) (a+ 4) (a−4)
=
a
2−
16
(10) ³y+ 3 2´ ³
y+ 3 4
´
=
y
2+
9
4
y
+
9
8
(11) ³3y− 1
3 ´2
= 9
y
2−
2
y
+
1
9
(12)³
5a+ 1 2
´ ³
5a+ 1 3
´
= 25
a
2+
25
6
a
+
1
6
(13) (2x−3)³2x+ 5 2
´
= 4
x
2−
x
−
15
2
(14) ³4y− 1
2 ´ ³
4y− 5
2 ´
= 16
y
2−
12
y
+
5
4
(15) ³5x− 7
2 ´ ³
5x+ 8 3
´
= 25
x
2−
25
6
x
−
28
3
(16) ³2a+ 8 5
´ ³
2a+ 1 2
´
= 4
a
2+
21
5
a
+
4
5
(17) ³4b− 4
3 ´2
= 16
b
2−
32
3
b
+
16
9
(18)³
4x− 7
3 ´ ³
4x+ 3 4
´
= 16
x
2−
19
3
x
−
7
4
(19) ³5y+ 7 3
´2
= 25
y
2+
70
3
y
+
49
9
(20) ³5a+ 8 5
´ ³
5a− 8
5 ´
= 25
a
2−
(1) (a+ 4)³a+ 4 3
´
(2) (x+ 2)³x+ 3 2
´
(3) ³x− 7
2 ´
(x−2) (4) (y+ 3)2
(5) ³x+ 1 3
´ ³
x+ 1 2
´ (6)
(x−2) (x+ 2)
(7) ³x+ 1 2
´2
(8) ³y− 1
4 ´ ³
y+ 1 4
´
(9) ³x+ 7 4
´2
(10) ³b− 7
4 ´ ³
b+ 1 4
´
(11) ³4x− 1
2 ´ ³
4x+ 2 3
´
(12) ³2y+ 4 3
´2
(13) ³2x+ 3 2
´
(2x−1) (14) ³5x− 5
2 ´2
(15) ³5b− 1
2 ´ ³
5b+ 2 3
´
(16) ³2a+ 5 4
´ ³
2a− 5
4 ´
(17) ³2a− 2
3 ´2
(18) ³2a+ 2 5
´2
(19) (2x−4)³2x+ 8 3
´
(20) ³5y+ 8 5
(1) (a+ 4)³a+ 4 3
´
=
a
2+
16
3
a
+
16
3
(2) (x+ 2) ³x+ 3 2
´
=
x
2+
7
2
x
+ 3
(3) ³x− 7
2 ´
(x−2)
=
x
2−
11
2
x
+ 7
(4) (y+ 3)2
=
y
2+ 6
y
+ 9
(5) ³x+ 1 3
´ ³
x+ 1 2
´
=
x
2+
5
6
x
+
1
6
(6) (x−2) (x+ 2)
=
x
2−
4
(7) ³x+ 1 2
´2
=
x
2+
x
+
1
4
(8)³
y− 1
4 ´ ³
y+ 1 4
´
=
y
2−
1
16
(9) ³x+ 7 4
´2
=
x
2+
7
2
x
+
49
16
(10)³
b− 7
4 ´ ³
b+ 1 4
´
=
b
2−
3
2
b
−
7
16
(11) ³4x− 1
2 ´ ³
4x+ 2 3
´
= 16
x
2+
2
3
x
−
1
3
(12) ³2y+ 4 3
´2
= 4
y
2+
16
3
y
+
16
9
(13) ³2x+ 3 2
´
(2x−1)
= 4
x
2+
x
−
3
2
(14) ³5x− 5
2 ´2
= 25
x
2−
25
x
+
25
4
(15) ³5b− 1
2 ´ ³
5b+ 2 3
´
= 25
b
2+
5
6
b
−
1
3
(16) ³2a+ 5 4
´ ³
2a− 5
4 ´
= 4
a
2−
25
16
(17) ³2a− 2
3 ´2
= 4
a
2−
8
3
a
+
4
9
(18)³
2a+ 2 5
´2
= 4
a
2+
8
5
a
+
4
25
(19) (2x−4)³2x+ 8 3
´
= 4
x
2−
8
x
−
32
(20) ³5y+ 8 5
´2
(1) (a+ 2)2 (2) (a−3)³a− 1 3
´
(3) ³x+ 7 3
´ ³
x− 5
2 ´
(4) (a−2)2
(5) (x+ 2) (x−2) (6) ³
x− 3
2 ´
(x−4)
(7) ³y− 7
4 ´ ³
y− 7
3 ´
(8) ³b− 7
5 ´ ³
b+ 5 4
´
(9) ³a− 3
2 ´ ³
a+ 3 2
´
(10) ³x+ 7 4
´ ³
x+ 5 2
´
(11) ³4y+ 7 3
´ ³
4y+ 4 3
´
(12) ³5b+ 5 3
´
(5b+ 1)
(13) ³3x− 7
2 ´2
(14) ³3a+ 1 2
´ ³
3a+ 7 2
´
(15) (5y−3) ³
5y− 1
2 ´
(16) (5y−3) ³
5y+ 5 2
´
(17) ³3b− 1
2
´2 (18) (5a+ 3) (5a
−3)
(19) ³2b− 7
4 ´ ³
2b+ 6 5
´ (20)
(1) (a+ 2)2
=
a
2+ 4
a
+ 4
(2)(a−3) ³
a− 1
3 ´
=
a
2−
10
3
a
+ 1
(3) ³x+ 7 3
´ ³
x− 5
2 ´
=
x
2−
1
6
x
−
35
6
(4) (a−2)2
=
a
2−
4
a
+ 4
(5) (x+ 2) (x−2)
=
x
2−
4
(6) ³x − 32 ´
(x−4)
=
x
2−
11
2
x
+ 6
(7) ³y− 7
4 ´ ³
y− 7
3 ´
=
y
2−
49
12
y
+
49
12
(8) ³b− 7
5 ´ ³
b+ 5 4
´
=
b
2−
3
20
b
−
7
4
(9) ³a− 3
2 ´ ³
a+ 3 2
´
=
a
2−
9
4
(10)³
x+ 7 4
´ ³
x+ 5 2
´
=
x
2+
17
4
x
+
35
8
(11) ³4y+ 7 3
´ ³
4y+ 4 3
´
= 16
y
2+
44
3
y
+
28
9
(12) ³5b+ 5 3
´
(5b+ 1)
= 25
b
2+
40
3
b
+
5
3
(13) ³3x− 7
2 ´2
= 9
x
2−
21
x
+
49
4
(14)³
3a+ 1 2
´ ³
3a+ 7 2
´
= 9
a
2+ 12
a
+
7
4
(15) (5y−3) ³
5y− 1
2 ´
= 25
y
2−
35
2
y
+
3
2
(16) (5y−3) ³
5y+ 5 2
´
= 25
y
2−
5
2
y
−
15
2
(17) ³3b− 1
2 ´2
= 9
b
2−
3
b
+
1
4
(18) (5a+ 3) (5a−3)
= 25
a
2−
9
(19) ³2b− 7
4 ´ ³
2b+ 6 5
´
