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

Factorise the following by the difference of two squares:
64x² - 121y²

Factorise the following by the difference of two squares:
441 - 81y²

Factorise the following by the difference of two squares:
x⁶ - 196

Factorise the following by the difference of two squares:
625 - b²

Factorise the following by the difference of two squares:

`"m"^2 - (1)/(9)"n"^2`

Factorise the following by the difference of two squares:
8xy² - 18x³

Factorise the following by the difference of two squares:
16a⁴ - 81b⁴

Factorise the following by the difference of two squares:
a(a - 1) - b(b - 1)

Factorise the following by the difference of two squares:
(x + y)² -1

Factorise the following by the difference of two squares:
x² + y² - z² - 2xy

Factorise the following by the difference of two squares:
(x - 2y)² -z²

Factorise the following:
9(a - b)² - (a + b)²

Factorise the following:
25(x - y)² - 49(c - d)²

Factorise the following:
(2a - b)² -9(3c - d)²

Factorise the following:
b² - 2bc + c² - a²

Factorise the following:

`x^2 + (1)/x^2 - 2`

Factorise the following:

(x² + y² – z²)² – 4x²y²

Factorise the following:

a² + b² – c² – d² + 2ab – 2cd

Factorise the following:
4xy - x² - 4y² + z²

Factorise the following:
4x² - 12ax - y² - z² - 2yz + 9a²