SOLUTION: The perimeter of a rectangle is 24cm. Express the area of the rectangle in terms of the width x.

Question 465574: The perimeter of a rectangle is 24cm. Express the area of the rectangle in terms of the width x.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,



 P = 2L + 2W

 24cm = 2L + 2W

   12 = L + W

Let x and (12-x) represent the width and length respectively

 A = x(12-x)   or  12x-x^2 

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