SOLUTION: The length of a rectanble is three inches more than the width. The area of the rectangle is 180 inches. Find the width of the rectangle.
I know that the length is x + 3
and th
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I know that the length is x + 3
and th
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Question 93119: The length of a rectanble is three inches more than the width. The area of the rectangle is 180 inches. Find the width of the rectangle.
I know that the length is x + 3
and the width is x
so the equation must be x(x + 3) = 180, but I don't know where I keep messing up when I go to solve it. Thanks so much for your help!! Answer by Nate(3500) (Show Source):
You can put this solution on YOUR website! You are on the right path:
x(x + 3) = 180
x^2 + 3x = 180
x^2 + 3x - 180 = 0
(x + 15)(x - 12) = 0
x = -15 and x = 12
Lenght can not be considered as negative ... x = 12
Length = 12 + 3 = 15 inches
Width = 12 inches
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