I'm supposed to solve for x by completing the square (Grade 11 math).

I'm just confused on this whole completing squares method. I've been at this one for a couple of hours. Help!

$\displaystyle {1\over{x^3+2}}-{1\over{x^3+3}}={1\over12}$

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- Nov 4th 2008, 06:13 PMnathan02079How exactly do I do this?
I'm supposed to solve for x by completing the square (Grade 11 math).

I'm just confused on this whole completing squares method. I've been at this one for a couple of hours. Help!

$\displaystyle {1\over{x^3+2}}-{1\over{x^3+3}}={1\over12}$ - Nov 4th 2008, 06:22 PMTKHunny
I would do this...

Substitute: $\displaystyle m = x^{3}$

Solve for m.

Then worry about solving for x. - Dec 13th 2008, 05:14 PMTKHunny
Wow, you came back!

On second thought, it might be even more fun to substitute $\displaystyle m = x^{3} + 2$ and see what happens.