WorksheetsAlgebraic identities
Total questions: 15
Worksheet time: 1hrs 15mins
Name
Class
Date
1.
(x2 - y2) × (x2 + y2) = ______
a)
2x2 + 2y2
b)
x4 - y4
c)
x4 + y4
d)
2x4
2.
(x - 8) ( x - 8) = ______
a)
x2 - 64
b)
x2 + 64
c)
x2 - 16x + 64
d)
x2 + 16x + 64
3.
Expand (4x − 5)(4x + 5).
a)
4x2 − 25
b)
4x2 + 25
c)
16x2 + 25
d)
16x2 − 25
4.
Expand (x−4)2.
a)
x2 −8x+16
b)
x2 −8x−16
c)
x2 +8x+16
d)
x2 −16
5.
(4a+2b)2=
a)
16a2+8ab−4b2
b)
16a2−8ab−4b2
c)
16a2−8ab+4b2
d)
16a2+8ab+4b2
6.
Using identity find 201 x 199
a)
3000
b)
3999
c)
39999
d)
31111
7.
Find 872 - 132
a)
7200
b)
7300
c)
7400
d)
7500
8.
(a2+2ab +b2) is the expansion of
a)
(a+b)2
b)
(a−b)2
c)
(a+b)3
d)
none of these
9.
(p - q)2
a)
p2 + 2pq + q2
b)
p2 + 2pq - q2
c)
p2 - 2pq - q2
d)
p2 - 2pq + q2
10.
(5-p)(5-p) is of the form
a)
(a−b)(a+b)
b)
(a−b)2
c)
(a+b)2
d)
none of these
11.
The product of 93x99 is
a)
9207
b)
9000
c)
8250
d)
8976
12.
Find (102)2 - (98)2
a)
200
b)
400
c)
600
d)
800
13.
Find 96 X 104, using identity
a)
9984
b)
9974
c)
9964
d)
9954
14.
Expand (x−4)2.
a)
x2 −8x+16
b)
x2 −8x−16
c)
x2 +8x+16
d)
x2 −16
15.
The square of x2 - 2y2 is ______
a)
x4 - 4x2y2 + 4y4
b)
x4 + 4x2y2 + 4y4
c)
x4 - 4x2y2 - 4y4
d)
None of the above
100 %
