Find the indicated matrix.
-Let $\mathrm { A } = \left[ \begin{array} { r r } 3 & - 4 \ - 2 & 5 \end{array} \right] , \mathrm { B } = \left[ \begin{array} { r r r } 5 & - 2 & 8 \ 1 & 0 & - 3 \end{array} \right]$, and $\mathrm { C } = \left[ \begin{array} { r r r } 7 & - 9 & 0 \ 3 & - 5 & 1 \ - 1 & 6 & 2 \end{array} \right]$. Find $\mathrm { AB } + \mathrm { BC }$.
A) $\left[ \begin{array} { r r r } - 10 & - 19 & 12 \ - 15 & 31 & - 25 \end{array} \right]$
B) $\left[ \begin{array} { r r r } 32 & 7 & 50 \ 5 & - 23 & - 37 \end{array} \right]$
C) $\left[ \begin{array} { r r r } 32 & 19 & 40 \ - 15 & 31 & - 37 \end{array} \right]$
D) $\left[ \begin{array} { r r r } 68 & 3 & 31 \ 8 & - 2 & - 5 \end{array} \right]$

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The Answer of Find the indicated matrix.
-Let $\mathrm { A } = \left[ \begin{array} { r r } 3 & - 4 \ - 2 & 5 \end{array} \right] , \mathrm { B } = \left[ \begin{array} { r r r } 5 & - 2 & 8 \ 1 & 0 & - 3 \end{array} \right]$, and $\mathrm { C } = \left[ \begin{array} { r r r } 7 & - 9 & 0 \ 3 & - 5 & 1 \ - 1 & 6 & 2 \end{array} \right]$. Find $\mathrm { AB } + \mathrm { BC }$.
A) $\left[ \begin{array} { r r r } - 10 & - 19 & 12 \ - 15 & 31 & - 25 \end{array} \right]$
B) $\left[ \begin{array} { r r r } 32 & 7 & 50 \ 5 & - 23 & - 37 \end{array} \right]$
C) $\left[ \begin{array} { r r r } 32 & 19 & 40 \ - 15 & 31 & - 37 \end{array} \right]$
D) $\left[ \begin{array} { r r r } 68 & 3 & 31 \ 8 & - 2 & - 5 \end{array} \right]$

Find the Indicated Matrix , And C=[7−903−51−162]\mathrm { C } = \left[ \begin{array} { r r r } 7 & - 9 & 0 \\ 3 & - 5 & 1 \\ - 1 & 6 & 2 \end{array} \right]C=​73−1​−9−56​012​​

Find the Indicated Matrix , And $\mathrm { C } = \left[ \begin{array} { r r r } 7 & - 9 & 0 \\ 3 & - 5 & 1 \\ - 1 & 6 & 2 \end{array} \right]$