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The length of the rectangle is one units more than the width. The area of the rectangle is 56 units. What is the width, and units, of the rectangle?

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salukhalid

Width is x.

Length is (x + 1).

Area = length*width

56 = x(x+1)

x² + x - 56 = 0

(x+8)(x-7)=0

x = - 8, or x = 7

"- 8" is impossible for width.

So, width x = 7

Length = (x+1) = 7+1 = 8

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