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The length of a rectangle is the sum of the width and 1 . The area of the rectangle is 72 units . What is the length in units of the rectangle
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The length of a rectangle is the sum of the width and 1 . The area of the rectangle is 72 units . What is the length in units of the rectangle

User Mad Man Moon
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1 Answer

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l = w+1
A = L * W
A = (W) * (W+1)
72 = W^2 + W
W^2 + W -72 = 0
According to the quadratic formula
(-b + or - square root (b^2 -4 ac))/2a
The positive answer is w = 8 and width must be positive, therefore l = 8+1 so 9
User Bicep
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