ICSE ICSE Class 8 - CISCE Question Bank Solutions for Mathematics

The two adjacent sides of a rectangle are 2x² – 5xy + 3z² and 4xy – x² – z². Find its perimeter.

What must be subtracted from 19x⁴ + 2x³ + 30x – 37 to get 8x⁴ + 22x³ – 7x – 60 ?

How much smaller is 15x – 18y + 19z than 22x – 20y – 13z + 26 ?

How much bigger is 5x²y² – 18xy² – 10x²y than –5x² + 6x²y – 7xy?

In square PQRS :
(i) if PQ = 3x – 7 and QR = x + 3 ; find PS
(ii) if PR = 5x and QS = 9x – 8. Find QS

Expand : (2a + b)³

Expand : (a − 2b)³

Expand : (3x − 2y)³

Expand : (x + 5y)³

Expand : `("a"+1/"a")^3`

Expand : `(2"a"-1/(2"a"))^3`

Find the cube of: a + 2

Find the cube of: 2a − 1

Find the cube of: 2a + 3b

Find the cube of: 3b − 2a

Find the cube of: `2"x"+1/"x"`

Find the cube of: `"x"-1/2`

Expand : (5x + 3y)³

Expand : (6a – 7b)³

For ₹ 378, 9 cans of juice can be bought, then how many cans of juice can be bought for ₹ 504?