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Find a polynominal for the perimeter and for the area. The demensions are:

Width:b+3, Length:b

The perimeter is:

The area is:

Do not factor.
Please help.

  • Algebra -

    perimeter = 2 (b+3) + 2 b
    = 2 b + 6 + 2 b
    = 4 b + 6

    area = (b+3)(b)
    = b^2 + 3 b

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