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19 March, 18:32

A rectangle has a height of x+9 and a width of x^2+2x.

Express the area of the entire rectangle.

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  1. 19 March, 20:01
    0
    The area of the entire rectangle is given by: x^3 + 11x^2 + 18x

    Step-by-step explanation:

    The calculation of its area is straightforward, we only need to multiply its height times its width:

    A = (x + 9) (x^2 + 2x) = x^3 + 2x^2 + 9x^2 + 18x = x^3 + 11x^2 + 18x

    Therefore the are are of the entire rectangle is given by: x^3 + 11x^2 + 18x
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