Chapter 8.4, Problem 8CVC

To determine

To fill: The blanks spaces in the statement, “To find the multiplicative inverse of an invertible matrix A, we perform row operations on $\left[\begin{array}{cc}A& I_n\end{array}\right]$ to obtain a matrix of the form $\left[\begin{array}{cc}{I}_n& B\end{array}\right]$, where $B=\underset{\_}{}$.”