london3116 london3116

07-10-2016
Mathematics

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A rectangle has a width w that is 5 units longer than its length l. Which equation expresses the rectangle's area, A?

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FractalX FractalX

07-10-2016

The area of a rectangle is length times width, or l * w. Since w = 5+ l, you can substitute that into l*w to get l*(l+5), or l^2+ 5l.

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