Question

(x-4)² = 36

Which of the following expressions represents the solutions to the given equation?
O-4 ± √(36)
04 ± √(36)
O 16 ± √(36)

Answer 1

The middle choice.

Explanation:

Comment

You are essentially taking the square root of both sides of the equation. When you have done that, you get

√(x - 4)^2 = √36

x - 4 = +/- √36 Add 4 to both sides

x-4+4=4+ +/- √36 Combine

x = 4 +/- √36