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Questions: Algebra BusinessCalculus
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Evaluate the expression \(\displaystyle 4 A + 2 B\)
\begin{equation*} A = \left[\begin{matrix}-3 & 6\\2 & 5\\6 & -1\end{matrix}\right], \text{ and } \quad\quad B = \left[\begin{matrix}-2 & 7\\-7 & 9\\3 & -5\end{matrix}\right] \end{equation*}
The sum is \(\displaystyle \left[\begin{matrix}-16 & 38\\-6 & 38\\30 & -14\end{matrix}\right]\).
\begin{question}Evaluate the expression $4 A + 2 B$\newline\begin{equation*} A = \left[\begin{matrix}-3 & 6\\2 & 5\\6 & -1\end{matrix}\right], \text{ and } \quad\quad B = \left[\begin{matrix}-2 & 7\\-7 & 9\\3 & -5\end{matrix}\right] \end{equation*}
\soln{9cm}{The sum is $\left[\begin{matrix}-16 & 38\\-6 & 38\\30 & -14\end{matrix}\right]$. }
\end{question}
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\begin{document}\begin{question}(10pts) The question goes here!
\soln{9cm}{The solution goes here.}
\end{question}\end{document}<p> <p>Evaluate the expression <img class="equation_image" title=" \displaystyle 4 A + 2 B " src="/equation_images/%20%5Cdisplaystyle%204%20A%20%2B%202%20B%20" alt="LaTeX: \displaystyle 4 A + 2 B " data-equation-content=" \displaystyle 4 A + 2 B " /> <br> <img class="equation_image" title=" A = \left[\begin{matrix}-3 & 6\\2 & 5\\6 & -1\end{matrix}\right], \text{ and } \quad\quad B = \left[\begin{matrix}-2 & 7\\-7 & 9\\3 & -5\end{matrix}\right] " src="/equation_images/%20%20A%20%3D%20%5Cleft%5B%5Cbegin%7Bmatrix%7D-3%20%26%206%5C%5C2%20%26%205%5C%5C6%20%26%20-1%5Cend%7Bmatrix%7D%5Cright%5D%2C%20%5Ctext%7B%20and%20%7D%20%5Cquad%5Cquad%20B%20%3D%20%5Cleft%5B%5Cbegin%7Bmatrix%7D-2%20%26%207%5C%5C-7%20%26%209%5C%5C3%20%26%20-5%5Cend%7Bmatrix%7D%5Cright%5D%20%20" alt="LaTeX: A = \left[\begin{matrix}-3 & 6\\2 & 5\\6 & -1\end{matrix}\right], \text{ and } \quad\quad B = \left[\begin{matrix}-2 & 7\\-7 & 9\\3 & -5\end{matrix}\right] " data-equation-content=" A = \left[\begin{matrix}-3 & 6\\2 & 5\\6 & -1\end{matrix}\right], \text{ and } \quad\quad B = \left[\begin{matrix}-2 & 7\\-7 & 9\\3 & -5\end{matrix}\right] " /> </p> </p><p> <p>The sum is <img class="equation_image" title=" \displaystyle \left[\begin{matrix}-16 & 38\\-6 & 38\\30 & -14\end{matrix}\right] " src="/equation_images/%20%5Cdisplaystyle%20%5Cleft%5B%5Cbegin%7Bmatrix%7D-16%20%26%2038%5C%5C-6%20%26%2038%5C%5C30%20%26%20-14%5Cend%7Bmatrix%7D%5Cright%5D%20" alt="LaTeX: \displaystyle \left[\begin{matrix}-16 & 38\\-6 & 38\\30 & -14\end{matrix}\right] " data-equation-content=" \displaystyle \left[\begin{matrix}-16 & 38\\-6 & 38\\30 & -14\end{matrix}\right] " /> . </p> </p>