Question

Factorize 81x^2 - 64y^2.

Answer 1

Answer:

81x^2 - 64y^2 = (9x)^2 - (8y)^2 = (9x+8y)(9x-8y)

Answer 2

✒Question:-

Factorise: 81x^2 - 64y^2.

☛Solution:-

(9x)^2 - (8y)^2

Using the identity (a) ^2 - (b) ^2 = (a+b) (a-b)

(9x+8y) (9x-8y)