Question

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Multiply.
(x + 6)(x − 6)

Answer 1

FOIL
First x times x = squared
Outside -6timesx= -6x
Inside 6 times x= 6x
Last 6 times -6 = -36
= x squared - 6x+6x-36
+x squared -36 (-6x and 6x cancel out)

Answer 2

x^2-36

Answer 3

you got it. You can recognize that what you have is just the factored form of a perfect square.

Answer 4

difference of 2 perfect squares

Answer 5

(x+y)(x-y)=x^2-y^2
(x + 6)(x − 6)=x^2-36