SOLUTION: a rectangle has a lenght that is 3 yard greater than the width. the area is 180 find lengs and width?

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Question 141025: a rectangle has a lenght that is 3 yard greater than the width.
the area is 180 find lengs and width?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
a rectangle has a length that is 3 yard greater than the width.
the area is 180 find length and width?
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Let width be "x" yrds.
Then length is "x+3" yrds.
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EQUATION:
x(x+3) = 180
x^2+3x-180 = 0
(x-12)(a+15) = 0
Positive solution:
x=12 yrds (width)
x+3 = 15 yrds (length)
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Cheers,
Stan H.