Question

what is the product of (ab+3)(ab-3)

Answer 1

difference of squares

Answer 2

\[\huge (ab+3)(ab-3) = (ab)^2-3ab+3ab-9\]

Answer 3

combine like terms

Answer 4

a^2b^2-6ab-9?

Answer 5

what is \[\huge -3ab+3ab?\]

Answer 6

0?

Answer 7

so is it a^2b^2-9?

Answer 8

yeah

Answer 9

woo! thank you so much