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30 November, 12:27

Find the width of the rectangle if it's area is (3x^2 + 9xy + 6y^2) square centimeters

3x + 6y cm is at the top of the rectangle p

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  1. 30 November, 12:41
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    The area of a rectangle is given by:

    area=length*width

    this implies that the width will be given by:

    width = (area) / (length)

    area = (3x^2+9xy+6y^2)

    length = (3x+6y)

    thus;

    width = (3x^2+9xy+6y^2) / (3x+6y)

    =[ (3x+6y) (x+y) ] (3x+6y)

    = (x+y) units
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