Question

Please someone help me!

Answer 1

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)`