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Math Help - Factoring a polynomial with 2 variables

  1. #1
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    Factoring a polynomial with 2 variables

    I need help factoring this polynomial: 64x^3-y^4... i have tried everything i can think of and i am just completely brain dead... help?
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  2. #2
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    [erased due to error made]
    Last edited by shenanigans87; April 30th 2010 at 11:28 AM.
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  3. #3
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    well, i finally found the review that we did in my class (i was trying to do the problems again for more practice, and thought i left it at home) and we went to (4x)^3 - (y^2)^3 and then did the difference of cubes. it came out to be (4x - y^2)(16x^2 + 4xy^2 + y^4)... and i had the first problem wrong, that is probably why... it was 64x^3 - y^6 and not y^4... that was my bad
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