$2$B$)P2B=8M1M2-4M2$

$2$C$)P2C=-3M{4}^2+7M3M2$

$2$D$)P2D=(5M2M)(M{1}^3)\%$ matrix multiply in parentheses, elementwise multiply between parentheses

$2$E$)P2E=\frac{6M4M3}{M{3}^2}\%$ matrix multiply in first parentheses, elementwise otherwise

Once you have these operations written in proper MATLAB syntax, go to your Editor menu and click Run. If

there are values in your Command Window for all operations without error messages, then your code has

successfully run! If you have error messages, read them carefully and try to resolve them, then click Run again.