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26 December, 03:37

The length of a rectangle is (x+3) inches long and te width is 3 inches. if the area is 15 square inches, write and solve an equation to find the length of the rectangle

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  1. 26 December, 03:50
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    X * (x + 3) = 15

    x^2 + 3x - 15 = 0

    x = - 3 + - sqrt (9 - 4*1*-15) / (2*1)

    x = - 3 + - sqrt (69) / 2

    x = - 3 + - 8.3066 / 2

    x = 5.3066/2

    x = 2.6533

    So, the rectangle is 2.6533 inches by 5.6533 inches.

    and Merry Christmas!
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