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Logarithm
If log 5 (x 2 + x) - log 5 x = 2 then the value of x is?
24
25
23
120
Show Answer
Correct Answer:
24
Explanation:
∵ log
5
[(x
2
+ x ) / x] = 2
⇒ log
10
(x + 1) = 2
⇒ x + 1 = 25
∴ x = 24
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