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Question
Solve for x:
`log_125 x = 1/3`
Sum
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Solution
Given: `log_125 x = 1/3`
Step-wise calculation:
1. Convert to exponential form:
`x = 125^(1/3)`
2. Write 125 as 53:
`x = (5^3)^(1/3)`
3. Use exponent rules:
`(5^3)^(1/3) = 5^(3 xx 1/3)`
`(5^3)^(1/3) = 5^1`
`(5^3)^(1/3) = 5`
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Chapter 7: Logarithms - Exercise 7A [Page 140]
