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13 May, 11:24

Find the perimeter of the quadrilateral if x = 2 the perimeter is

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  1. 13 May, 14:03
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    (x - 12) (x + 11) = 0

    Therefore x = 12 or x = - 11 (reject since x cannot be negative)

    Substitute x = 12 into the 4 sides given:

    x + 2 = 12 + 2 = 14

    2x + 1 = 2 (12) + 1 = 25

    x - 5 = 12 - 5 = 7

    x^2 - 3x = (12) ^2 - 3 (12) = 108

    Hence, the 4 sides of the quadrilateral are 14 inches, 25 inches, 7 inches and 108 inches.
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