Question

Solve (x + 9)² = 25.

1. Apply the square root property of equality.

2. Isolate the variable.

Answer 1

The answer is x = -4.
Applying the square root property of equality basically means that we need to take the square roots of both sides.


`\sqrt{(x+9)^(2) }= √(25)`

Which turns into:
`x+9=5`

Then we can isolate x by subtracting 9 from both sides:
`x=-4`

Answer 2

If x + 9 = 5, then x = -4

If x + 9 = –5, then x = -14

Explanation:

It was on Edgenuity

Hope this helped :)