Solving Equations using Properties of Logarithms

Question 1

Both are extraneous solutions.Only 3 is an extraneous solution. Only –3 is an extraneous solution. Neither is an extraneous solution.

Revolt · Accepted Answer

C: Only –3 is an extraneous solution.

Question 2

⇒ -3

Revolt · Accepted Answer

-3

Question 3

Explain the error in the solution below. What additional step needs to be completed?log x – log53 = 2log53 log x = 3log53 log x = log533 x = 27

Revolt · Accepted Answer

The error is applying the one-to-one property when the logarithms have different bases. The additional step is to use the change-of-base formula to rewrite the logarithms with the same base before solving.

Question 4

Which of the following did you include in your response?

Revolt · Accepted Answer

AssessCtrl0ce5dbbc-1038-479e-a7af-a2784c2686e4_1_A,AssessCtrl0ce5dbbc-1038-479e-a7af-a2784c2686e4_1_B,AssessCtrl0ce5dbbc-1038-479e-a7af-a2784c2686e4_1_C

Question 5

⇒ 3

Revolt · Accepted Answer

3

Solving Equations using Properties of Logarithms Answers

More from this Course

TRY EDGENUITY HACKS