\(a,C=2^3\cdot3-\left(1^{10}+15\right):4\)
\(=8\cdot3-16:4\)
\(=24-4\)
\(=20\)
\(Vậy : C=20\)
\(b,\left(75:3+2\cdot9^2\right):x=11\)
\(\Rightarrow\left(25+162\right):x=11\)
\(\Rightarrow187:x=11\)
\(\Rightarrow x=187:11\)
\(\Rightarrow x=17\)
\(Vậy: x=17\)
#\(Toru\)