SOLUTION: (2x – 1)^2 – 9 = 0 please show the work im having trouble figuring this out

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Question 774851: (2x – 1)^2 – 9 = 0

please show the work im having trouble figuring this out
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
%282x%961%29%5E2%969=0
(2x – 1)^2 – 9 = 0

Solvable in three steps.
(!) Add 9 to both sides.
(!) Exponentiate both sides by %281%2F2%29 power.
(!) Add 1 to both sides.

WHOOOOPS!! I made a mistake. The solving process needs one more step.