Question

Factors of 81q^2 –25r^2 are

Answer 1

(9q + 5r)(9q - 5r)

Explanation:

Given :-

81q² - 25r²

To Find :

Factors

Formula :-

a² - b² = (a + b)(a - b)

Solution :-

(9q + 5r)(9q - 5r)