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

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Math Expert
Joined: 02 Sep 2009
Posts: 50658
If 3^2*9^2 = 3^x, what is the value of x?  [#permalink]

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26 Aug 2018, 05:13
00:00

Difficulty:

25% (medium)

Question Stats:

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

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If $$3^29^2 = 3^x$$, what is the value of x?

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

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Joined: 16 May 2017
Posts: 53
Location: India
WE: General Management (Retail Banking)
Re: If 3^2*9^2 = 3^x, what is the value of x?  [#permalink]

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26 Aug 2018, 05:18
1
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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Math Expert
Joined: 02 Sep 2009
Posts: 50658
Re: If 3^2*9^2 = 3^x, what is the value of x?  [#permalink]

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26 Aug 2018, 05:21
aghosh54 wrote:
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?

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

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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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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.
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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