Find the indicated derivative for the function.

f double prime left parenthesis x right parenthesisf$($x$)$

for f left parenthesis x right parenthesis equals $9$ x Superscript $7$ Baseline minus $3$ x Superscript $4$ Baseline plus $2$ x minus $6$f$($x$)=9$x$73$x$4+2$x$6$

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Part $1$

f double prime left parenthesis x right parenthesisf$($x$)$equals$=$enter your response here