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23-11-2017
Mathematics

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The length of a rectangle is represented by the polynomial 2x^3-5x^2+8 and the width is represented by the polynomial x+3 . Find the area of the rectangle.

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anathegreat anathegreat

23-11-2017

x^2+8x+15 is the area

because x+5 = length
and x +3 = width

(x+5)(x+3) =
x^2+3x+5x+15 =
x^2+8x+15 (area)

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