设 $D=\left|\begin{array}{lll}a_1 & b_1 & c_1 \\ a_2 & b_2 & c_2 \\ a_3 & b_3 & c_3\end{array}\right|=M \neq 0$ ，则 $\left|\begin{array}{lll}a_1-2 c_1 & -b_1+c_1 & b_1+3 c_1 \\ a_2-2 c_2 & -b_2+c_2 & b_2+3 c_2 \\ a_3-2 c_3 & -b_3+c_3 & b_3+3 c_3\end{array}\right|=$