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

Question:

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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Solution A change to exponential expression square root method mea...View the full answer

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Precalculus

ISBN: 978-0321716835

9th edition

Authors: Michael Sullivan

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Question Posted: Jan 15, 2019 12:22 PM

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

Question:

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:(x – 1)2 = 2 2 log; (x – 1) = 2, log;(x – 1) = 1. x – 1 = 3' = 3 x = 4 %3D %3|

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Solution A change to exponential expression square root method mea...View the full answer

Precalculus

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