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Example Questions
Example Question #111 : Exponents
If , then ?
Possible Answers:
5
10
15
4
25
Correct answer:
5
Explanation:
Calculate the power of that makes the expression equal to 25. We can set up an alternate or equivalent equation to solve this problem:
Solve this equation by taking the square root of both sides.
, because logarithmic equations cannot have a negative base.
The solution to this expression is:
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