Fill in reasons for each step in the following two solutions. Solve: log 3 (x 1) 2

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Fill in reasons for each step in the following two solutions.

Solve: log3(x €“ 1)2 = 2

Solution A log3(x – 1)2 = 2 (x – 1)2 = 32 = 9 (x – 1) = ±3 x – 1 = -3 or x – 1 = 3 -2 or x = 4 Solution B log


Both solutions given in Solution A check. Explain what caused the solution x = -2 to be lost in Solution B.

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Precalculus

ISBN: 978-0321716835

9th edition

Authors: Michael Sullivan

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