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22 February, 19:25

The length of a rectangle is three centimeters less than the width. If the area of the rectangle is 54cm2, find the

dimensions of the rectangle.

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Answers (1)
  1. 22 February, 19:39
    0
    w = 9, l = 6

    Step-by-step explanation:

    w=x

    l=x-3

    A = lw

    54 = x (x-3)

    54 = x^2-3x

    0 = x^2-3x-54

    0 = (x+6) (x-9)

    x+6 = 0

    x-9 = 0

    x=-6, 9

    x cannot be negative, x = 9
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