SOLUTION: If the area of a rectangle is 60, and the length of the rectangle is 4 plus the width, what is the equation used to find the width and length of the rectangle?

Question 841603: If the area of a rectangle is 60, and the length of the rectangle is 4 plus the width, what is the equation used to find the width and length of the rectangle?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
x for length, y for width
from description.
area, . Substitute to obtain
-----this is one of the equations you would use.
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and you want the POSITIVE result.

Note that the quadratic expression is also factorable:

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You can now find x because you have the value of y.

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