$$2 x \sinh{\left (x^{2} \right )}$$
/ 2 / 2\ / 2\\
2*\2*x *cosh\x / + sinh\x //
$$2 \left(2 x^{2} \cosh{\left (x^{2} \right )} + \sinh{\left (x^{2} \right )}\right)$$
/ / 2\ 2 / 2\\
4*x*\3*cosh\x / + 2*x *sinh\x //
$$4 x \left(2 x^{2} \sinh{\left (x^{2} \right )} + 3 \cosh{\left (x^{2} \right )}\right)$$