Question

Factories :. 25 x^2 - y^2 / 9
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Answer 1

$25 {x}^{2} - \frac{ {y}^{2} }{9} \\ = ( {5x})^{2} - ( \frac{y}{3} ) ^{2} \\ = (5x + \frac{y}{3} )(5x - \frac{y}{3} )$

Remember:

a²-b²=(a+b)(a-b)

Answer 2

Answer:

(5x+y/3)(5x-y/3)

Step-by-step explanation:

This is the identity of a square minus b square which is (a-b)(a+b). 5x square is 25x and (y/3) square is y/9

so the answer is (5x+y/3)(5x-y/3)