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mark is told that the area of a given rectangle is 4x^2 - 13x + 10. if the length is x - 2, what is the width.

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hmmmm first off, what is x -2? it doesn't say above, but we can safely assume is a factor of the Area, and therefore, since it's a rectangle, is a dimension, either the length or width.

since we know the Area of the rectangle is 4x² - 13x +10, and we know one of the dimensions is x-2, then the quotient of dividing the area by that dimension, will simply give the other dimension. Recall that the Area of a rectangle is just the product of length * width.


\bf \cfrac{4x^2-13x+10}{x-2}\implies \cfrac{(4x-5)\underline{(x-2)}}{\underline{x-2}}\implies 4x-5

thus, that's the other factor of the Area, and therefore, the other dimension.
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