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If 4x – 4x-1 = 24, then (2x)x equals 

A. \(5\sqrt5\)

B. \(\sqrt5\)

C. \(25\sqrt5\)

D. 125

1 Answer

+1 vote
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Best answer

4x – 4x – 1 = 24

Let 4x = y

y - \(\frac{y}4\)= 24

4y – y = 96

y = 32

4x = 32

22x = 25 

(2x)x\((2\times\frac{5}{2})^{\frac{5}{2}}\)

(5)5/2 \(25\sqrt5\)

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