Question

Factorise
25x^2 /4 - y^2 /4

Answer 1

Answer:

((5x+y)(5x-y))/4

Step-by-step explanation:

Write the given expression as

(5x/2)^2-(y/2)^2

this is of the form

a^2-b^2=(a+b)(a-b)

So,

(5x/2+y/2)(5x/2-y/2)

((5x+y)(5x-y))/4