SOLUTION: A rectangular window pane is 12 square feet. The width of the window pane is 1 foot less than its length. Find the width of the window pane.

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Question 944393: A rectangular window pane is 12 square feet. The width of the window pane is 1 foot less than its length.
Find the width of the window pane.
Answer by amarjeeth123(569) About Me  (Show Source):
You can put this solution on YOUR website!
Let the length of the window pane be x
Width of the window pane is (x-1).
Area of the window pane=x(x-1)
x(x-1)=12
x^2-x-12=0
x^2-4x+3x-12=0
x(x-4)+3(x-4)=0
(x-4)(x+3)=0
x=4
Width of the window pane is 3 feet.