Question

Solve (7x + 2)^2 = 64

Answer 1

What do you get when you take the square root of both sides?

Answer 2

\[\sqrt{(7x+2)^2}= \pm \sqrt{64}\]

Answer 3

So when you take the square root of a square, you get the function inside, this would simply be 7x+2.

Answer 4

I'll leave the rest to you :)