/ 2 \
\x + 3/*sign(x) + 2*x*|x|
$$2 x \left|{x}\right| + \left(x^{2} + 3\right) \operatorname{sign}{\left(x \right)}$$
// 2\ \
2*\\3 + x /*DiracDelta(x) + 2*x*sign(x) + |x|/
$$2 \left(2 x \operatorname{sign}{\left(x \right)} + \left(x^{2} + 3\right) \delta\left(x\right) + \left|{x}\right|\right)$$
/ / 2\ \
2*\3*sign(x) + \3 + x /*DiracDelta(x, 1) + 6*x*DiracDelta(x)/
$$2 \left(6 x \delta\left(x\right) + \left(x^{2} + 3\right) \delta^{\left( 1 \right)}\left( x \right) + 3 \operatorname{sign}{\left(x \right)}\right)$$