Question

Find the factors of m2 − 9.

(m − 3)(m − 3)

(m + 3)(m − 3)

(m + 3)(m + 3)

Prime

Answer 1

this is difference of two squares: a*a - b*b = (a-b)(a+b)
m^2 - 9 = m*m- 3*3

Answer 2

A?

Answer 3

(a-b)(a+b)
^ ^

Answer 4

Oh, so B.

Answer 5

yes :)

Answer 6

nice skateboarding videos btw :P

Answer 7

Haha thanks. I have a passion for film making. :)