EduSahara™ Assignment
Name : Algebraic Identities
Chapter : Algebraic Expressions and Identities
Grade : CBSE Grade VIII
License : Non Commercial Use
Question
1
1.
(
a
+
b
)
2
(i)
(
2
a
b
+
b
2
)
(ii)
(
2
a
2
+
2
a
b
+
b
2
)
(iii)
(
a
2
+
4
a
b
+
b
2
)
(iv)
(
a
2
+
2
a
b
+
b
2
)
(v)
(
a
2
−
a
b
+
b
2
)
Question
2
2.
(
a
−
b
)
2
(i)
(
2
a
2
−
2
a
b
+
b
2
)
(ii)
(
−
2
a
b
+
b
2
)
(iii)
(
a
2
+
a
b
+
b
2
)
(iv)
(
a
2
−
2
a
b
+
b
2
)
(v)
(
a
2
−
5
a
b
+
b
2
)
Question
3
3.
(
a
+
b
)
(
a
−
b
)
(i)
(
a
2
+
b
2
)
(ii)
(
−
b
2
)
(iii)
(
a
2
−
b
2
)
(iv)
(
2
a
2
−
b
2
)
(v)
(
a
2
−
4
b
2
)
Question
4
4.
(
a
+
3
b
)
2
(i)
(
a
2
+
9
a
b
+
9
b
2
)
(ii)
(
6
a
b
+
9
b
2
)
(iii)
(
a
2
+
4
a
b
+
9
b
2
)
(iv)
(
a
2
+
6
a
b
+
9
b
2
)
(v)
(
2
a
2
+
6
a
b
+
9
b
2
)
Question
5
5.
(
5
a
−
b
)
2
(i)
(
25
a
2
−
10
a
b
+
b
2
)
(ii)
(
25
a
2
−
8
a
b
+
b
2
)
(iii)
(
24
a
2
−
10
a
b
+
b
2
)
(iv)
(
26
a
2
−
10
a
b
+
b
2
)
(v)
(
25
a
2
−
13
a
b
+
b
2
)
Question
6
6.
(
2
a
+
5
b
)
(
2
a
−
5
b
)
(i)
(
4
a
2
−
23
b
2
)
(ii)
(
4
a
2
−
25
b
2
)
(iii)
(
4
a
2
−
28
b
2
)
(iv)
(
5
a
2
−
25
b
2
)
(v)
(
3
a
2
−
25
b
2
)
Question
7
7.
(
3
2
a
+
2
b
)
2
(i)
(
9
4
a
2
+
3
a
b
+
4
b
2
)
(ii)
(
9
4
a
2
+
6
a
b
+
4
b
2
)
(iii)
(
9
4
a
2
+
9
a
b
+
4
b
2
)
(iv)
(
5
2
a
2
+
6
a
b
+
4
b
2
)
(v)
(
13
6
a
2
+
6
a
b
+
4
b
2
)
Question
8
8.
(
−
3
2
a
−
3
2
b
)
2
(i)
(
9
4
a
2
+
7
2
a
b
+
9
4
b
2
)
(ii)
(
9
4
a
2
+
9
2
a
b
+
9
4
b
2
)
(iii)
(
13
6
a
2
+
9
2
a
b
+
9
4
b
2
)
(iv)
(
9
4
a
2
+
11
2
a
b
+
9
4
b
2
)
(v)
(
5
2
a
2
+
9
2
a
b
+
9
4
b
2
)
Question
9
9.
(
−
3
2
a
−
2
b
)
(
−
3
2
a
+
2
b
)
(i)
(
9
4
a
2
−
4
b
2
)
(ii)
(
9
4
a
2
−
6
b
2
)
(iii)
(
13
6
a
2
−
4
b
2
)
(iv)
(
9
4
a
2
−
b
2
)
(v)
(
5
2
a
2
−
4
b
2
)
Assignment Key
1) (iv)
2) (iv)
3) (iii)
4) (iv)
5) (i)
6) (ii)
7) (ii)
8) (ii)
9) (i)
