SOLUTION: The length of a rectangle is 4 more than the width. The area is 357 square centimeters. Find the length and width of the rectangle.

Question 1101255: The length of a rectangle is 4 more than the width. The area is 357 square centimeters. Find the length and width of the rectangle.
Found 2 solutions by jorel1380, ikleyn:
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
Let w be the width; and w+4 be the length. Then:
w(w+4)=357
w�+4w-357=0
(w+21)(w-17)=0
w=17 or -21
The width and length of the rectangle are 17cm and 21cm, respectively
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Answer by ikleyn(52844) (Show Source): You can put this solution on YOUR website!
.

Area = L*W, or 357 = w*(w+4). Solve this quadratic equation w^2 + 4w - 357 = 0, = = . The only positive root is w = 17. Answer. The dimensions of the rectangle are 17 and 21 centimeters. Check. 17*21 = 357. ! correct !

Solved.

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