Question

How do you factor $x^2-25$?

Answer 1

The answer is $(x+5)(x-5)$.

$(x^2-25)$ fits the pattern of the difference

of squares in which $(a^2-b^2)=(a+b)(a-b)$

The factorization of $(x^2-25)=(x^2-5^2)=$$(x+5)(x-5)$