Question

(x + 3) (x - 3) = __________​

Answer 1

Answer:

$x^{2} -9$

Step-by-step explanation:

(x + 3) (x - 3) = $x^{2} -3^{2}$

                    =$x^{2} -9$

hope it helps.

Answer 2

Answer:

x^2- 3^2

Step-by-step explanation:

it's an identity that

xsq -asq = (x+a) (x-a)