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The area of a rectangular wall of a barn is 176 square feet. Its length is 6 feet longer than twice its width. Find the length and width of the wall of the barn

Sagot :

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Answer:

To  continue where ParthForThree left off

2x^2+6x-176=0     divide through by 2

x^2  +  3x  -  88  =  0        factor

(x + 11) ( x - 8)  = 0

Set both factors to 0  and solving for x  we get that x  = -11 ft  (reject)  or x  = 8 ft

This is the width    ......  and the length  =  2(8)  + 6  =  22 ft

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