SOLUTION: The area of a rectangular wall of a barn is 42ft. It's length is 8 ft longer than its width. What are the length and width of the wall?
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Question 1107024: The area of a rectangular wall of a barn is 42ft. It's length is 8 ft longer than its width. What are the length and width of the wall?
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.
L*(L-8) = 42.
L^2 - 8L - 42 = 0.
Solve this quadratic equation using quadratic formula.
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