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Manager
Manager
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Joined: 17 Nov 2009
Posts: 234

Kudos [?]: 62 [0], given: 17

Find X [#permalink]

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New post 10 May 2010, 14:32
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Please show me the steps to find x

3x+x\sqrt{3} =3+3\sqrt{3}

The answer is x=\sqrt{3} but I need to see the manipulation to get the answer..

Thanks

Kudos [?]: 62 [0], given: 17

CEO
CEO
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Status: Nothing comes easy: neither do I want.
Joined: 12 Oct 2009
Posts: 2756

Kudos [?]: 1911 [0], given: 235

Location: Malaysia
Concentration: Technology, Entrepreneurship
Schools: ISB '15 (M)
GMAT 1: 670 Q49 V31
GMAT 2: 710 Q50 V35
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Re: Find X [#permalink]

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New post 10 May 2010, 14:52
8
agnok wrote:
Please show me the steps to find x

3x+x\sqrt{3} =3+3\sqrt{3}

The answer is x=\sqrt{3} but I need to see the manipulation to get the answer..

Thanks


\(3x + x\sqrt{3} = 3+ 3\sqrt{3}\)

\(x(3 + \sqrt{3}) = 3(1 + \sqrt{3})\)

\(x = 3*(1 + \sqrt{3})/(3 + \sqrt{3})\)

\(x = 3(1 + \sqrt{3})/\sqrt{3}(1 + \sqrt{3})\)

hence x = \(\sqrt{3}\)
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Kudos [?]: 1911 [0], given: 235

Manager
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Joined: 09 Apr 2010
Posts: 74

Kudos [?]: 73 [0], given: 3

Re: Find X [#permalink]

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New post 14 May 2010, 02:10
i think x\sqrt{3} should not be written like this ..it creates confusion because someone might think "\" is division ...

Kudos [?]: 73 [0], given: 3

Re: Find X   [#permalink] 14 May 2010, 02:10
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