Question

Edna says that when (x - 2)2 = 9, that x - 2 = 3. Use complete sentences to explain whether Edna is correct. Use specific details in your explanation.

Answer 1

She is correct because taking the sqrt on both sides would give us x-2=3

Explanation:

Answer 2

(x-2)²=9
sqrt both sides
don't forget positive and negative roots
x-2=+/-3

well, she is partially correct
x-2=3 is one answer
she didn't remember the other one the x-2=-3