The third derivative
[src]
/ 2 \
2*(-3 + 2*x)*\6*DiracDelta(x*(-3 + x)) + (-3 + 2*x) *DiracDelta(x*(-3 + x), 1)/
$$2 \left(2 x - 3\right) \left(\left(2 x - 3\right)^{2} \delta^{\left( 1 \right)}\left( x \left(x - 3\right) \right) + 6 \delta\left(x \left(x - 3\right)\right)\right)$$