Question

Can someone check my answer? Did I do the correct process?
(x+2) (x-2) = 32
FOIL

x^2 -2x +2x -4 =32
x^2 - 4 = 32
+4
x^2 = 36

x= 6

Answer 1

Yep, you did everything fine :)

Answer 2

Ja/Yes.

Answer 3

x can also be -6 ;)
x^2 = 36
=> (x^2 - 6^2) = 0
=> (x+6)(x-6) = 0
so , x=6 or x=-6

Answer 4

^good point.

Answer 5

\(\pm 6\)

Answer 6

±6