coles98 coles98

24-04-2020
Mathematics

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How do I solve 5 log x equals negative 15

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mishal963 mishal963

24-04-2020

5 becomes the power of x
So, log x^5 = -15
Using the logarithmic rule , and since base is not mentioned it should be 10,
Therefore :
x^5 = 10^ -15
x^5 = 10^ -3(5) now the powers are equal so,
x = 10^-3
x = -1000.
Correct me if I am wrong...

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