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# Exponents simplification

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Intern
Joined: 07 Jan 2013
Posts: 3

Kudos [?]: 6 [0], given: 4

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07 Apr 2013, 08:28
Hi guys,

I was trying to beat the gmat and got some question really close to this one in PS section. I cant remember the alternatives, but all of them were simplification of this expression for ex. 1/11^3 + 1/12^3 or 1/sq 11^3 + 1/sq12^3. Is there something am i missing for sure. Thanks
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Kudos [?]: 6 [0], given: 4

VP
Status: Far, far away!
Joined: 02 Sep 2012
Posts: 1120

Kudos [?]: 2327 [0], given: 219

Location: Italy
Concentration: Finance, Entrepreneurship
GPA: 3.8

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07 Apr 2013, 08:35
gepetow wrote:
Hi guys,

I was trying to beat the gmat and got some question really close to this one in PS section. I cant remember the alternatives, but all of them were simplification of this expression for ex. 1/11^3 + 1/12^3 or 1/sq 11^3 + 1/sq12^3. Is there something am i missing for sure. Thanks

$$[12\sqrt{11*12}+11\sqrt{11*12}]/11*12\sqrt{11*12}=$$
$$\sqrt{11*12}(11+12)/11*12\sqrt{11*12}=$$
$$\frac{12+11}{11*12}$$

Semplification example: $$\sqrt{11*12^3}=\sqrt{11*12*12^2}=12\sqrt{11*12}$$
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Kudos [?]: 2327 [0], given: 219

Re: Exponents simplification   [#permalink] 07 Apr 2013, 08:35
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