Brightstorm Q & A : I'm having a hard time solving 4x^2 - 64y^2? Can anyone help me? I got this as my answer: (2x+8y)(2x-8y). But it's a multiple choice question and that's not one of the choices.

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lqez now

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That is certainly a difference of perfect squares, and your answer is correct. Perhaps the answers in the multiple choice are all wrong! X)

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Carlos November 11, 2009

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You should first remove the greatest common factor which is 4. This results in 4(x^2-16y^2). Now factor the difference of squares and you get the completely factored form 4(x+4y)(x-4y)

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Harriet006 November 11, 2009

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so i have a good idea ask your mommy

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kobebryant December 22, 2009

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lol.. she might not have one

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morethanmeetsureye._is_my_name October 19, 2010

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I'm having a hard time solving 4x^2 - 64y^2? Can anyone help me? I got this as my answer: (2x+8y)(2x-8y). But it's a multiple choice question and that's not one of the choices.
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I'm having a hard time solving 4x^2 - 64y^2? Can anyone help me? I got this as my answer: (2x+8y)(2x-8y). But it's a multiple choice question and that's not one of the choices. ⚑ Flag

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I'm having a hard time solving 4x^2 - 64y^2? Can anyone help me? I got this as my answer: (2x+8y)(2x-8y). But it's a multiple choice question and that's not one of the choices.
⚑ Flag