PreCalculus - Algebra Fundamental Review (26 of 80) Review of Word Problems: Dimensions Ex. 2

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In this video I will find the width and length of a rectangular fencing given the area of 2040 square feet.
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A fan of your videos here. Just wanted to point out, that since at the end you derived the length from the formula of area, you should've checked the correctness for the total length of the fence. Both answers check out anyways :)

tomsakmens
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since the second term is negative, how can I proceed using the complete the square formula?

edman
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Why are you county 4 widths but not 3 lengths?? That seems internally inconsistent.

davidb.