Kirk B.

asked • 11/27/16

The perimeter of a quadrilateral is 120 centimeters find the length of its sides. The sides are x + 5, x + 3, 3x - 8 , and x^2-3x

I have no idea how to do this problem to find each one of the sides and it's the last one I have to do

1 Expert Answer

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Mark M. answered • 11/27/16

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120 = (x + 5) +(x + 3) + (3x - 8) + (x2 - 3x)
120 = x2 + 2x
 
Can you solve for x?
What are the lengths of the sides?
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Kirk B.

Actually I was able to solve it I just couldn't get my head around how to simplify the 4 parts of the equation but I got 13,15,22 and 70 for each side thank you very much
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11/27/16

Mark M.

You are very much welcome! 
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11/27/16

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