5 2 x 1 3*x - -- - ------- 3 / 1 \ |-----| |3 ___| \\/ x /
3*x^2 - x^5/3 - 1/x^(-1/3)
4 5*x 1 6*x - ---- - ------ 3 2/3 3*x
/ 3 \ | 10*x 1 | 2*|3 - ----- + ------| | 3 5/3| \ 9*x /
/ 2 1 \ -10*|2*x + -------| | 8/3| \ 27*x /