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daser333 [38]
3 years ago
14

How do you solve -3log5x=-6?

Mathematics
1 answer:
iren2701 [21]3 years ago
7 0
-3log5x = -6 would equal x = 25.

First, 
use the Power Rule: (log b x ^{c} = c log b x). Your problem should look like -log5 x³ = -6.
Second, multiply both sides by -1. Your problem should look like log5 x³ = 6. We removed the negative signs.
Third, use the Definition of Common Logarithms. ( b^{a}= x if and only if logb(x) = a). Your problem should look like x³ = 5^{6}.
Fourth, simplify 5^{6} to 15625. Your problem should look like x³ = 15625.
Fifth, take the cube root of both sides. Your problem should look like x = 3√15625.
Sixth, calculate your problem to get x = 25 which is the answer.
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