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Math Help - multiply

  1. #1
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    multiply

    Multiply
    (3x-6)(x+1)

    (2x-10)(2x+10)


    I have done these, I just want to see if I have the right answers.
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  2. #2
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    Quote Originally Posted by Suwanee View Post
    Multiply
    (3x-6)(x+1)
    (3x)(x)+(3x)(1)+(-6)(x)+(-6)(1)=
    3x^2+3x-6x-6=
    3x^2-3x-6

    (2x-10)(2x+10)
    (2x)(2x)+(2x)(-10)+(2x)(1)+(10)(-10)=
    4x^2-20x+20x-100=
    4x^2-100
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  3. #3
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    I had both right, thanks

    Thanks, I had both of them right.
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