Question 109331
The rectangular screen has an area of 11,349 square feet.  Find the dimensions of the screen if it is 20 feet longer than it is wide.
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Let width be "x" ft.
Then length = "x+20" ft
EQUATION:
x(x+20) = 11349
x^2 + 20x - 11349 = 0
x = [-20 +- sqrt(400-4*-11349)]/2
x = [-20 +- sqrt(45796)]/2
x = [-20 +- 214]/2
x = [-20+214]/2
x = 97 ft (width)
x+20 = 117 (length)
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Cheers,
Stan H.