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Solve for x: log_x 32 = –5 - Mathematics

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Question

Solve for x:

logx 32 = –5

Sum
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Solution

Given: logx 32 = –5

Step-wise calculation:

1. Convert to exponential form: 

x–5 = 32

2. Solve for x: 

`x = 32^(-1/5)` 

`x = (2^5)^(-1/5)` 

x = 2–1

`x = 1/2`

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Chapter 7: Logarithms - Exercise 7A [Page 140]

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Nootan Mathematics [English] Class 9 ICSE
Chapter 7 Logarithms
Exercise 7A | Q 6. (ii) | Page 140
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