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Should I memorize these as well? a^3+b^3 =

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Senior Manager
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Should I memorize these as well? a^3+b^3 = [#permalink]

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New post 21 Jul 2008, 13:44
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Should I memorize these as well?

\(a^3+b^3 = (a+b)(a^2-ab+b^2)\)

and

\(a^3-b^3 = (a-b)(a^2+ab+b^2)\)

Thanks!
Director
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Re: what about these quadratics? [#permalink]

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New post 21 Jul 2008, 13:45
asdert wrote:
Should I memorize these as well?

\(a^3+b^3 = (a+b)(a^2-ab+b^2)\)

and

\(a^3-b^3 = (a-b)(a^2+ab+b^2)\)

Thanks!


Couldn't hurt -- why take a chance?
Re: what about these quadratics?   [#permalink] 21 Jul 2008, 13:45
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Should I memorize these as well? a^3+b^3 =

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