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If 3^2*9^2 = 3^x, what is the value of x?

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If 3^2*9^2 = 3^x, what is the value of x?  [#permalink]

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New post 26 Aug 2018, 05:13
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A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

84% (00:14) correct 16% (00:29) wrong based on 18 sessions

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Re: If 3^2*9^2 = 3^x, what is the value of x?  [#permalink]

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New post 26 Aug 2018, 05:18
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Bunuel wrote:
If \(3^29^2 = 3x\), what is the value of x?

(A) 2
(B) 3
(C) 4
(D) 5
(E) 6


I think that question should be \(3^29^2=3^x,\) What is the value of x?
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Re: If 3^2*9^2 = 3^x, what is the value of x?  [#permalink]

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New post 26 Aug 2018, 05:21
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Re: If 3^2*9^2 = 3^x, what is the value of x?  [#permalink]

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New post 26 Aug 2018, 06:52
Bunuel wrote:
If \(3^29^2 = 3^x\), what is the value of x?

(A) 2
(B) 3
(C) 4
(D) 5
(E) 6

\(3^29^2 = 3^x\)

Or, \(3^2*3^4 = 3^x\) { As 9 = 3^2 }

So, \(3^6 = 3^x\) , Thus \(x = 6\) , Answer must be (E)
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Re: If 3^2*9^2 = 3^x, what is the value of x?  [#permalink]

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New post 26 Aug 2018, 09:32
Bunuel wrote:
If \(3^29^2 = 3^x\), what is the value of x?

(A) 2
(B) 3
(C) 4
(D) 5
(E) 6



Given

\(3^29^2 = 3^x\)

\(3^23^4 = 3^x\)

\(3^6 = 3^x\)

x = 6.

The best answer is E.
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Re: If 3^2*9^2 = 3^x, what is the value of x? &nbs [#permalink] 26 Aug 2018, 09:32
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If 3^2*9^2 = 3^x, what is the value of x?

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