### Exercise condition:

8
Find the value of the trinomial algebraic expression $3x-\mathit{ay}+\mathit{bz}$,

where $a=3c,\phantom{\rule{0.147em}{0ex}}b=10{c}^{3},$
$\begin{array}{l}x=5{c}^{3}+2,\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\\ y=5{c}^{2}-c+14,\phantom{\rule{0.147em}{0ex}}\\ z=5c-1\end{array}$

$i{c}^{4}+i{c}^{3}+i{c}^{2}+ic+i$
If there are negative numbers, enter them with the “$$-$$” sign in one window.