Question

factor.
m squared - 25

Answer 1

dude it can't be factored

Answer 2

(m-5) (m+5)

Answer 3

thanks i forgot how to do it but now i remember.

Answer 4

there's a rule for this kind of polynomials, try to find it in your book.
But just in case you can't find it, here it is:
a^2 -b^2 = (a-b)(a+b)

If it's a^2 +b^2 it can't be factored.
hope this helps.