The length of a rectangle is 12m more than twice the width .the area of the rectangle is 320 square in . Write an equation that can be used to find the length and width of the rectangle. Also find the dimensions of the rectangle.
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let width be x
so length=12+2x
area=320
l*b=320
(12+2x)*x=320
12x+2x^2-320=0
x^2+6x-160=0
so length=12+2x
area=320
l*b=320
(12+2x)*x=320
12x+2x^2-320=0
x^2+6x-160=0
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