SOLUTION: Log4=a log7=b log28=?

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Question 944332: Log4=a
log7=b
log28=?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
log%28%2828%29%29=log%28%284%2A7%29%29=log%28%284%29%29%2Blog%28%287%29%29

Substitute the given values, in this case values for the variables.

a%2Bb