Question

Solve for x:
(x−4)^2−9=0

Answer 1

what is (x-4)(x-4)?

Answer 2

What you should ALWAYS do is FACTOR.

A^2 - 9 = 0 is solved this way. (A+3)(A-3)=0

B^2 - 9 = 0 is solved this way. (B+3)(B-3)=0

Frog^2 - 9 = 0 is solved this way. (Frog+3)(Frog-3)=0

How then, do you suppose, we should solve: (x-4)^2 - 9 = 0?

Answer 3

(x-4)^2-3^2......solve for (a+b)(a-b)

Answer 4

lol