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What is the value of integer x ? (1) 64^(1/x) = 4 (2) x^2 = x + 6

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New post Updated on: 19 Feb 2019, 03:32
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What is the value of integer x ?

(1) \(\sqrt[x]{64} = 4\)

(2) \(x^2 = x + 6\)

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Originally posted by SajjadAhmad on 18 Feb 2019, 12:53.
Last edited by Bunuel on 19 Feb 2019, 03:32, edited 1 time in total.
Formatted.
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New post 19 Feb 2019, 03:33
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New post 19 Feb 2019, 03:27
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Sorry to bother you please see this image, i tried to make it look like this but failed. Bunuel can definitely format it correctly.

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Re: What is the value of integer x ? (1) 64^(1/x) = 4 (2) x^2 = x + 6  [#permalink]

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New post 18 Feb 2019, 14:30
SajjadAhmad wrote:
What is the value of integer x ?

(1) X\(\sqrt{64}= 4\)

(2) \(x^2 = x + 6\)


Is there a typo in the question?
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Re: What is the value of integer x ? (1) 64^(1/x) = 4 (2) x^2 = x + 6  [#permalink]

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New post 19 Feb 2019, 01:03
SajjadAhmad wrote:
What is the value of integer x ?

(1) X\(\sqrt{64}= 4\)

(2) \(x^2 = x + 6\)


SajjadAhmad
getting two different values of x from 1 & 2
#1 x= 2
and #2 x=3

are the stems given correct?
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Re: What is the value of integer x ? (1) 64^(1/x) = 4 (2) x^2 = x + 6  [#permalink]

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New post 19 Feb 2019, 03:54
SajjadAhmad wrote:
What is the value of integer x ?

(1) \(\sqrt[x]{64} = 4\)

(2) \(x^2 = x + 6\)



from 1 we can get the value for x as 3, since \(2^6 = 64\)

6/3 = 2, \(2^2 = 4\)

From 2) we will get a quadratic equation, when solved will give us 2 roots -2 or 3

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Re: What is the value of integer x ? (1) 64^(1/x) = 4 (2) x^2 = x + 6   [#permalink] 19 Feb 2019, 03:54
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