Secondary School (English Medium) (5 to 8) Class 8 - CBSE Question Bank Solutions

Expand the following, using suitable identities.

`(4/5a + 5/4b)^2`

Expand the following, using suitable identities.

`(2/3x - 3/2y)^2`

Expand the following, using suitable identities.

`(4/5p + 5/3q)^2`

Expand the following, using suitable identities.

(x + 3)(x + 7)

Expand the following, using suitable identities.

`((4x)/5 + y/4)((4x)/5 + (3y)/4)`

Expand the following, using suitable identities.

(2x + 9)(2x – 7)

Expand the following, using suitable identities.

`((2x)/3 - 2/3)((2x)/3 + (2a)/3)`

Expand the following, using suitable identities.

(2x – 5y)(2x – 5y)

Expand the following, using suitable identities.

`((2a)/3 + b/3)((2a)/3 - b/3)`

Expand the following, using suitable identities.

(x² + y²)(x² – y²)

Expand the following, using suitable identities.

(a² + b²)²

Expand the following, using suitable identities.

(7x + 5)²

Expand the following, using suitable identities.

(0.9p – 0.5q)²

Using suitable identities, evaluate the following.

(52)² 

Using suitable identities, evaluate the following.

(49)² 

Using suitable identities, evaluate the following.

(103)² 

Using suitable identities, evaluate the following.

(98)² 

Using suitable identities, evaluate the following.

(1005)² 

Using suitable identities, evaluate the following.

(995)² 

Using suitable identities, evaluate the following.

47 × 53