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Codingoutloud · Answer 1 · 2019-08-09T03:35:07+0000

The perimeter is double the sum of the sides.
.. P = 2(3x/(x +10) +x^2/(x -5))
.. = 2(3x(x -5) +x^2(x +10))/((x +10)(x -5))
.. = 2(x^3 +13x^2 -15x)/(x^2 +5x -50)

P=(2x^(3)+26x^(2)-30x)/(x^(2)+5x-50)

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