Question

Please help me factor
x2 - 25=?

Answer 1

x^2 -25 = (x+5) (x-5)

Explanation:

X^2-25

This is the difference of squares

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

a^2 = x^2 so a=x

b^2 = 25 so b=5

x^2 -25 = (x+5) (x-5)