SOLUTION: Please help! The length of a rectangle plus its width is 40m. The area is 336 square meters. How long is the longest side of the triangle?

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Question 87336: Please help! The length of a rectangle plus its width is 40m. The area is 336 square meters. How long is the longest side of the triangle?
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
X+Y=40, X=40-Y
(40-Y)Y=336
40Y-Y^2-336=0
Y^2-4OY+336=0
(Y-28)(Y-12)=0
Y-28=0
Y=28 ANSWER.
Y-12=0
Y=12 ANSWER.