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Math Help - Another Answer Check

  1. #1
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    Another Answer Check

    Hi All help with this one please is it correct:

    (5-2x)

    (5-2x) (5-2x)

    5 5, 5 2x, 2x 5, 2x 2x

    10 + 10x + 10x + 4x

    10 + 20x + 4x

    = 10 + 24x

    Thanks
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  2. #2
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    Quote Originally Posted by squidge View Post
    Hi All help with this one please is it correct:

    (5-2x)

    (5-2x) (5-2x)

    5 5, 5 2x, 2x 5, 2x 2x

    10 + 10x + 10x + 4x

    10 + 20x + 4x

    = 10 + 24x

    Thanks
    Hello,

    don't forget that 2x \cdot 2x = 4x^2

    The correct result should be: (5-2x)^2 = 25 - 20x + 4x^2
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  3. #3
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    Answer

    Thanks for your help again
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