If 3(x – y) = 27 and 3(x + y) = 243, then x is equal to:
Correct answer C. 4
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See allIf 9^x − 9^(x − 1) = 216, what is the value of x?
Correct answer D. 5/2
If x = 3 + 2√2, what is the value of x + 1/x?
Correct answer B. 6
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What is the value of 81^(0.25) × 81^(0.5)?
Correct answer D. 27
What is the value of (0.04)^(−1.5)?
Correct answer A. 125
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