The area of a rectangular lot is given by the polynomial 21 x cubed plus 28 x squared minus 14 x. If the length is 7 x, what is the width of the lot?
a.
3 x squared minus 2 x
b.
3 x squared plus 4 x minus 2
c.
3 x squared minus 4 x plus 2
d.
3 x squared plus 4 x plus 2
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Geometry involving Polynomials
The area of a rectangular lot is given by the polynomial 21x³+28x²-14x. If the length is 7x, what is the width of the lot?
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Solution:
The quotient of the area and length represents the width of the rectangle.
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Answer:
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