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Which equation results from taking the square root of both sides of (x – 9)2 = 81? x – 9 = ±9 x + 9 = ±9 x + 3 = ±9 x – 3 = ±9

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ClarenceV
The answer is x - 9 = ±9.

When you take the square root of (x - 9)², you simply remove the exponent. 81 on the other hand has two possible square roots, -9 and 9, hence we always include ± before the square root (i.e. ±9).

Hope this helps.
micawood6941

Answer:

a. x-9=+-9

Step-by-step explanation: