SOLUTION: The length of a rectangular piece of sheet metal must be 4 in. longer than the width. Find the exact dimensions that will provide an area of 45 sq in

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Question 1079538: The length of a rectangular piece of sheet metal must be 4

in. longer than the width. Find the exact dimensions that will provide an area of 45

sq in
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
system%28x=y%2B4%2Cxy=45%29

%28y%2B4%29y-45=0
y%5E2%2B4y-45=0
%28y-5%29%28y%2B9%29=0

highlight%28y=5%29, width
highlight%28x=9%29, length