d / 4 2 \
--\(x + 2*x - x, 6/5)/
dx
$$\frac{d}{d x} \left( - x + \left(x^{4} + 2 x^{2}\right), \ \frac{6}{5}\right)$$
2
d / 4 2 \
---\(x + 2*x - x, 6/5)/
2
dx
$$\frac{d^{2}}{d x^{2}} \left( - x + \left(x^{4} + 2 x^{2}\right), \ \frac{6}{5}\right)$$
3
d / 4 2 \
---\(x + 2*x - x, 6/5)/
3
dx
$$\frac{d^{3}}{d x^{3}} \left( - x + \left(x^{4} + 2 x^{2}\right), \ \frac{6}{5}\right)$$