Question

what is the factorisation of x^2-25y^2 ?​

Answer 1

$x2−(5y)2x2-(5y)2</p><p></p><p>Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b)a2-b2=(a+b)(a-b) where a=xa=x and b=5yb=5y.</p><p></p><p>(x+5y)(x−(5y))(x+5y)(x-(5y))</p><p></p><p>Multiply 55 by −1-1.</p><p></p><p>(x+5y)(x−5y)(x+5y)(x-5y)</p><p>$

Answer 2

Answer:

(x+5y) (x-5y) .........