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Math Help - Basic Factoring Question

  1. #1
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    Basic Factoring Question

    Although it this is basic it has been a stumbling block for me.

    Factor
    2x^2-32

    The answer is 2(x-4)(x+4) apparently. Would someone please show me how to solve this? Thanks
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  2. #2
    Member SENTINEL4's Avatar
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    Kastoria, Greece
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    2x^2-32 = 2(x^2-16) = 2(x^2-4^2) = 2(x-4)(x+4)
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  3. #3
    MHF Contributor red_dog's Avatar
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    2x^2-32=2(x^2-16)=2(x^2-4^2)=2(x-4)(x+4)

    Use the formula a^2-b^2=(a-b)(a+b)
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