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21 February, 17:36

A rectangular prism has length x - 2, width 5x, and height x - 4. Write the volume V of the prism as a polynomial in standard form. Use the formula V = lwh

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  1. 21 February, 18:47
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    (x-2) (5x) (x-4)

    X times 5x = 5x^2

    X times x = x^2

    X times - 4 = - 4x

    -2 times 5x = - 10x

    -2 times x = - 2x

    -2 times - 4 = 8

    5x times x = 5x^2

    5x times - 4 = - 20x

    (5x^2 + 5x^2 + x^2) = 11x^2

    (-4x + - 10x + - 2x + - 20x) = - 36x

    8 = 8

    11x^2 - 36x + 8
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