15x^2 - 16x -15 = (5x+3)(3x-5)

(15x^2 - 16x -15)/(3x-5) = (5x+3)(3x-5)/(3x-5) = 5x-3 feet= width

Luisa R.

asked • 03/04/21If the area of a rectangle is (15x^{2}-16x-15) square feet, and its length is (3x-5) feet, find its width.

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15x^2 - 16x -15 = (5x+3)(3x-5)

(15x^2 - 16x -15)/(3x-5) = (5x+3)(3x-5)/(3x-5) = 5x-3 feet= width

Mark M. answered • 03/04/21

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area / length = width

(15x^{2} - 16x - 15) / (3x - 5) = ?

Hint: factor the numerator.

Luisa R.

Thank you so much ! It was very helpful.
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03/04/21

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Luisa R.

Thank you so much ! It helped me a lot.03/04/21