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10th grade math

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a rectangular picture 8 inches by 12 inches has a frame of uniform width x inches. Write a function expressing the total area A of the picture and the frame as a function of x.

  • 10th grade math -

    A = (2x+12)(2x+8)
    multiply that out using FOIL or distributive property

  • 10th grade math -

    (a+b)(a+c) form

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