CPM Homework Help : PCT Problem 4-26

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4-26.

Rewrite each of the following logarithmic expressions in terms of a single log.

$\text{log }M + 2\text{ log }N$
Hint (a):
Bring the $2$ up as an exponent first. Then combine the two logs into one.
Answer (a):
$\text{log}(MN^2)$

$\frac { 1 } { 2 }(\text{log } P −\text{ log }Q)$
Hint (b):
Combine the logs first into one log. Be careful with the sign.
Bring the $\frac{1}{2}$ up as an exponent for both logs.
Answer (b):
$\text{log}\sqrt{\frac{P}{Q}}$

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