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

Construct a parallelogram POUR in which, PO = 5.5 cm, OU = 7.2 cm and ∠O = 70°.

On dividing 57p²qr by 114pq, we get ______.

On dividing p(4p² – 16) by 4p(p – 2), we get ______.

Multiply the following:

(3x² + 4x – 8), (2x² – 4x + 3)

Multiply the following:

(2x – 2y – 3), (x + y + 5)

Simplify:

(3x + 2y)² + (3x – 2y)²

Simplify:

(3x + 2y)² – (3x – 2y)²

Simplify: 

`(7/9 a + 9/7 b)^2 - ab`

Simplify:

`(3/4x - 4/3y)^2 + 2xy`

Simplify:

(1.5p + 1.2q)² – (1.5p – 1.2q)²

Simplify:

(2.5m + 1.5q)² + (2.5m – 1.5q)²

Simplify: 

(x² – 4) + (x² + 4) + 16

Simplify:

(ab – c)² + 2abc

Simplify:

(a – b) (a² + b² + ab) – (a + b) (a² + b² – ab)

Simplify:

(b² – 49)(b + 7) + 343

Simplify:

(4.5a + 1.5b)² + (4.5b + 1.5a)²

Simplify:

(pq – qr)² + 4pq²r

Simplify:

(s²t + tq²)² – (2stq)²

Expand the following, using suitable identities.

(xy + yz)²

Expand the following, using suitable identities.

(x²y – xy²)²