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# If = 4, then x2 = 2 4 8 16 256

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If = 4, then x2 = 2 4 8 16 256 [#permalink]  15 May 2018, 15:58
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Question Stats:

100% (00:16) correct 0% (00:00) wrong based on 8 sessions
If $$\sqrt{x}= 4$$, then $$x^2 =$$
A. 2
B. 4
C. 8
D. 16
E. 256
[Reveal] Spoiler: OA

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Kudos [?]: 778 [0], given: 88

Re: If = 4, then x2 = 2 4 8 16 256 [#permalink]  16 May 2018, 23:52
Given,

$$\sqrt{x}$$ = 4
Hence, squaring both sides we get,
x = 16
therefore, $$x^2 = 16^2 = 256$$
option E
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Re: If = 4, then x2 = 2 4 8 16 256   [#permalink] 16 May 2018, 23:52
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# If = 4, then x2 = 2 4 8 16 256

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