gena2729 gena2729

01-09-2020
Mathematics

contestada

Rewrite the following expression as a single logarithm: log7(x2+5x−14)−log7(x+7)

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mhanifa mhanifa

01-09-2020

Answer:

log7(x-2)

Step-by-step explanation:

Use of property: log(ab) = log(a) + log(b)

log7(x²+5x−14)−log7(x+7) =

log7(x+7)(x-2) - log7(x+7) =

log7(x+7) + log7(x-2) - log7(x+7) =

log7(x-2)

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