Question

factorise in 49 x square -25 ysquare​

Answer 1

Step-by-step explanation:

(49x^2-25y^2

(7x+5y) (7x-5y)

Answer 2

$49 {x}^{2} - 25 {y}^{2} \\= ( {7x})^{2} - (5y )^{2} \\= (7x + 5y)(7x - 5y)$

Using identity a²-b²= (a+b)(a-b)