solution for X^3+Y^3+Z^3 : GMAT Quantitative Section
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# solution for X^3+Y^3+Z^3

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Intern
Joined: 12 Sep 2010
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14 Oct 2010, 15:51
Hi Guys;

In my schoold days, i knew a formula/solution about following equation. It would be a great help if some one can tell me solution/formula as i am forgetting it now.

X^3+Y^3+Z^3 = ???

Regards
Intern
Joined: 10 Oct 2010
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14 Oct 2010, 16:17
Fraz wrote:
Hi Guys;

In my schoold days, i knew a formula/solution about following equation. It would be a great help if some one can tell me solution/formula as i am forgetting it now.

X^3+Y^3+Z^3 = ???

Regards

I do not believe that you are providing enough information about the equation. What exactly would you like to "do" with the equation? Factor it? Find the roots?

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14 Oct 2010, 16:35
$$x^3+y^3+z^3=(x+y+z)*(x^2+y^2+z^2-xy-xz-yz)+3xyz$$

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Re: solution for X^3+Y^3+Z^3   [#permalink] 14 Oct 2010, 16:35
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