Find$$f$\text{'}(-3\mathrm{.}4)$ for the function$$f$($x$)=1$x$5+3$x$4+1$x$3+2$x$2+2$x $+1.$Round your answer to three decimal places. $$Hint: $$Once you have found the derivative of f$,$ you can use synthetic division to evaluate it at$$x $=-3\mathrm{.}4.$