\[\boxed{\text{1082.}\text{\ }еуроки - ответы\ на\ пятёрку}\]
\[\textbf{а)}\ \left( 5c^{2} - c + 8 \right)(2c - 3) - 16 =\]
\[= 10c^{3} - 2c^{2} + 16c - 15c^{2} +\]
\[+ 3c - 24 - 16 =\]
\[= 10c^{3} - 17c^{2} + 19c - 40\]
\[\textbf{б)}\ 18m³ -\]
\[- (3m - 4)\left( 6m^{2} + m - 2 \right) =\]
\[= 18m^{3} -\]
\[- \left( 18m^{3} + 3m^{2} - 6m - 24m^{2} - 4m + 8 \right) =\]
\[= 18m^{3} - 18m^{3} - 3m^{2} + 6m +\]
\[+ 24m^{2} + 4m - 8 =\]
\[= 21m^{2} + 10m - 8\]