Question

Find the product of (x + 3)(x − 3).

Answer 1

x² - 3² = x² - 9

(a+b) (a-b) = a² - b²

Answer 2

See below.

Explanation:

x*x=x²

x*-3=-3x

3*x=3x

3*-3=-9

x²-3x+3x-9

x²-9

-hope it helps