### Exercise condition:

5♦

Simplify the trinomial and find its numerical value:

$-cbc+{c}^{2}b4cb+8.2$,

where $c=4,\phantom{\rule{0.147em}{0ex}}b=1.2$.

The numerical value of the trinomial is .

5♦

Simplify the trinomial and find its numerical value:

$-cbc+{c}^{2}b4cb+8.2$,

where $c=4,\phantom{\rule{0.147em}{0ex}}b=1.2$.

The numerical value of the trinomial is .