The length of a rectangle is 3 meters less than twice the width if the area is 104 square meters find the length

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Mathematics

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9 October, 15:26

The length of a rectangle is 3 meters less than twice the width if the area is 104 square meters find the length

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Dawson · Answer 1

X-width

2x-3-length

A=lxw

104 = (2x-3) (x)

104=2x^2-3x

52=x^2-3/2 (x)

52+9/16=x^2-3/2 (x) + 9/16

841/16 = (x-3/4) ^2

29/4=x-3/4

x=32/4 or 8

length is 2 (8) - 3 which is 13 and width is 8