Question

factorize 25x^2-49y^2​

Answer 1

Answer:

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

Use this formula

$(x {}^{2} - {y}^{2} ) = (x + y)(x - y)$

Answer 2

$25x^2-49y^2​ = (5x)^2 - (7y)^2\\\\a^2-b^2 = (a+b)(a-b)\\\\a = 5x \ , b = 7y\\\\(5x)^2 - (7y)^2 = (5x + 7y)(5x-7y)\\\\hope \ it \ helps \ !!$