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Thread: Simplify expression...

  1. October 10th 2010, 04:12 AM #1
    Lil
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    Post Simplify expression...

    \left ( m^\frac{1}{3}+n^{\frac{1}{3}} \right )\left ( m^{\frac{2}{3}}-m^{\frac{1}{3}}n^{\frac{1}{3}}+n^{\frac{2}{3}} \right )
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  2. October 10th 2010, 04:13 AM #2
    Prove It
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    Try either expanding by brute force, or using the sum of two cubes rule.
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  3. October 10th 2010, 04:34 AM #3
    Lil
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    ...=\left ( m^{\frac{1}{3}} \right )^{3}+\left ( n^{\frac{1}{3}} \right )^{3}=m+n
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  4. October 10th 2010, 04:59 AM #4
    linalg123
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    Quote Originally Posted by Lil View Post
    ...=\left ( m^{\frac{1}{3}} \right )^{3}+\left ( n^{\frac{1}{3}} \right )^{3}=m+n
    correct
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