Maths Expansions Worksheet

Maths Expansions Class 9^th

(Q.1)  Using (x +a) (x +b) identity, find the product of 103 * 98

  

(Q.2)  Product of (3x + 4y) and (2x + 3y) is

 

(Q.3)  The Product of ( a + 7) and (b + 5) is

 

(Q.4)  The product of (a2 + c) and (a + c2) is

 

(Q.5)  Product of (x + 1) and (x +2) is

 

(Q.6)  Product of (x +a) and (x +b) is

 

(Q.7)  Find the product of (x –y) (x-y)

 

(Q.8)  Using suitable identity find the product of (x +3)2

(Q.9)  Simplify using suitable identity for (7x – 8y)2 + (7x +8y)2

(Q.10)  Using a2 – b2 = (a +b) (a –b) find 512 – 492

(Q.11)  Find the product of (x2 – y2) (2x + y).

(Q.12)  Simplify (xy + yz)2 – (xy –yz)2

(Q.13)  Simplify (xy + yz)2 – 2x2y2z find the value when x = -1, y = 1 and z = 2

(Q.14)  Multiply (a2 + 2c2) (3a – 3c)

(Q.15)  Simplify (x2 – y2) 2

(Q16)  Using identity find the value of (4.7)2

(Q.17)  Using suitable identity find (6x2 – 5/3)2.

(Q.18)  Using identity a2 - b2 = (a +b) (a – b) find (1.02)2 – (0.98)2

(Q.19)  Using (x + a) ( x + b) = x2 + (a +b) x + ab find 105 * 107

(Q.20)  Using identity find the value of (7.2)2

(Q.21)  Using identity evaluate 297 * 303