Question

Theo started to solve the quadratic equation (x + 2)2 - 9 = -5. He added 9 to both sides and the resulting equation was

(x + 2)2 = 4. Next, he took the square root of each side.
Which was the resulting equation of that step?

Answer 1

A

Explanation:

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Answer 2

`x + 2 = \pm √(4)`

Explanation:

(x + 2)^2 - 9 = -5

Add 9 to both sides.

(x + 2)^2 = 4

Take the square root of both sides.

`x + 2 = \pm √(4)`