Question

How to factorise
25x²- 64y²​

Answer 1

25x²- 64y²

= (5x)² - (8y)²

= (5x-8y)(5x+8y)

Hope this helps!

Answer 2

(5x + 8y)(5x - 8y)

Explanation:

Since both terms are perfect squares, factor using the difference of squares formula, a^2 - b^2 = (a + b)(a - b) where a = 5x and b = 8y.

~Hoped this helped~