(English Medium) ICSE Class 9 - CISCE Question Bank Solutions

Expand the following:
(2x - 5) (2x + 5) (2x- 3)

Expand the following:
(a + 3b)²

Expand the following:
(2p - 3q)²

Expand the following:

`(2"a" + 1/(2"a"))^2`

Expand the following:
(x - 3y - 2z)²

Find the squares of the following:
9m - 2n

Find the squares of the following:
3p - 4q²

Find the squares of the following:

`(7x)/(9y) - (9y)/(7x)`

Find the squares of the following: 
(2a + 3b - 4c)

Simplify by using formula :
(5x - 9) (5x + 9)

Simplify by using formula :
(2x + 3y) (2x - 3y)

Simplify by using formula :
(a + b - c) (a - b + c)

Simplify by using formula :
(x + y - 3) (x + y + 3)

Simplify by using formula :
(1 + a) (1 - a) (1 + a²)

Simplify by using formula :

`("a" + 2/"a" - 1) ("a" - 2/"a" - 1)`

Evaluate the following without multiplying:
(95)²

Evaluate the following without multiplying:

(103)²

Evaluate the following without multiplying:
(999)²

Evaluate the following without multiplying:
(1005)²

Evaluate, using (a + b)(a - b)= a² - b².
399 x 401