1 Answer

Ramsey · Answer 1 · 2019-09-09T08:56:27+0000

Given the expression
b^(3c+1)=5a-d.

Take a logarithm
$\log_b$ from both side of the given expression:

$\log_b b^(3c+1)=\log_b (5a-d).$

From the property
$\log_a a^x=x,$ you have that

$\log_b b^(3c+1)=3c+1.$

Then

$3c+1=\log_b (5a-d).$

Answer: correct choice is C

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