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April 19, 2014

Homework Help: Algebra

Posted by Loreal on Tuesday, June 5, 2007 at 4:25pm.

How would I complete this problem?

Geometry. The area of a rectangle of length x is given by 3x^2 + 5x. Find the width of the rectangle.

I think the width is 3x+5 but not sure.


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Homework Help Forum: Algebra
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Posted by Loreal on Tuesday, June 5, 2007 at 4:25pm.
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How would I complete this problem?

Geometry. The area of a rectangle of length x is given by 3x^2 + 5x. Find the width of the rectangle.

I think the width is 3x+5 but not sure.

The area is the product of the length times the width or A = xy.

A is given as A = 3x^2 + 5x = xy

Dividing through by x yields y = 3x + 5.

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