SOLUTION: During a 1997 tour, the rock group U2 used the largest LED electronic screen as part of the stage backdrop. The screen, with an area of 9,520 square feet, had a length that was 2 f

Question 1128797: During a 1997 tour, the rock group U2 used the largest LED electronic screen as part of the stage backdrop. The screen, with an area of 9,520 square feet, had a length that was 2 feet more than 3 times its width. Find the dimensions of the LED screen. Use a polynomial equation to solve the problem.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
width=x
length=3x+2
area is x*(3x+2)=3x^2+2x=9520
3x^2+2x-9520=0
x=(1/6)(-2+/- sqrt (4+12(9520)); sqrt term=338
positive root only x=(336/6)=56'
width 56'
length 170'
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