algebra 1 NEED NOW!!! PLEASE HELPPP

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A rectangular picture measuring 3 in. by 7 in. is surrounded by a frame with uniform width x. Write a quadratic function in standard form to show the combined area of the picture and frame.

  • algebra 1 NEED NOW!!! PLEASE HELPPP -

    length = 7 + 2x
    width = 3 + 2x
    area = (2x+7)(2x+3)
    etc

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