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Math Help - 3 factoring problems...

  1. #1
    Newbie Supernovastar101's Avatar
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    3 factoring problems...

    #1 49a^6-c^2*d^2

    AND

    #2 (c-d)^2+2(c-d)+1

    AND

    #3 5x^4-125y^4

    thanks!
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  2. #2
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    #1 49a^6-c^2d^2

    =(7a^3)^2 - (cd)^2

    = (7a^3 + cd)(7a^3-cd)


    #2 (c-d)^2+2(c-d)+1

    =(c-d)^2+2(c-d).1+1^2

    =\left(c-d+1 \right)^2


    #3 5x^4-125y^4

    =5(x^4-25y^4)

    =5\left[(x^2)-(5y^2)^2\right]

    =5(x^2+5y^2)(x^2-5y^2)
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  3. #3
    Newbie Supernovastar101's Avatar
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    thank you! saved my life!
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