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5 August, 10:37

To find the area, A of a rectangle you multiply the rectangle's length, l by its width, w. What is the width of a rectangle with the following dimensions:

A = X^2 + 7x + 10

l = (x + 2)

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  1. 5 August, 11:19
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    w = x + 5

    Step-by-step explanation:

    The formula for Area is A = l * w

    L = x + 2

    w = ?

    Area = x^2 + 7x + 10

    The area can be factored

    x^2 + 7x + 10 = (x + 2) (x + 5)

    So now you can write the formula as

    (x + 2) * w = (x + 2) (x + 5) Divide both sides by x + 2

    w = ((x + 2) (x + 5)) / (x + 2)

    The two (x + 2) 's cancel

    w = x + 5
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