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11 January, 11:56

the area of a rectangle is 8x^2 + 2x-1. the width of the rectangle is 4x-1. what is the length of the rectangle

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  1. 11 January, 12:22
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    (2x+1)

    Step-by-step explanation:

    since area = length * width, you can factor the area to get the length (since you are given the width)

    8x^2 + 2x - 1 = (4x-1) (2x+1)

    since width is 4x-1, length must be 2x+1
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