SOLUTION: the length of a rectangle is 5cm more than the width. the area is 50cm^2. find the width

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Question 344523: the length of a rectangle is 5cm more than the width. the area is 50cm^2. find the width
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
L=5%2BW
A=50
A=LW
.
50=%285%2BW%29W
50=W%5E2%2B5W
0=W%5E2%2B5W-50
just by looking at this you should see -5 and 10 both add to get +5 and multiply to get -50
0=%28W-5%29%28W%2B10%29
W=5,-10
since a length cant be negative W=5
5+5=L
10=L