Chapter 6, Matrices and Determinants - Section 6.2 - The Algebra of Matrices - 6.2 Exercises - Page 511: 14

\[ M= \left[ {\begin{array}{cc} 1 & 2 \\ 7 & 6 \\ \end{array} } \right] \]

We realize this will turn into a 2x2 matrix. \[ M= \left[ {\begin{array}{cc} 2+3-4 & -4+6+0 \\ 6+9-8 & -12+18 \\ \end{array} } \right] \] Is the result after multiplying each row my each column on the first and second matrices respectively.