Compute the following.

StartFraction d squared Over dx squared EndFraction $(3$ x cubed$-$x squared $+9$ x minus $3$ right$)$ vertical line Subscript x equals $3$ Superscript d$2$dx$23$x$^3$x$^2+9$x$3$x$=3$

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Part $1$

StartFraction d squared Over dx squared EndFraction left parenthesis $3$ x cubed minus x squared plus $9$ x minus $3$ right parenthesis vertical line Subscript x equals $3$ Superscript d$2$dx$23$x$3$x$2+9$x$3$x$=3$equals$=$enter your response here

$($Simplify your$$ answer.$)$