Question
Let $A=\left[\begin{array}{cc}2 & 1 \\ 0 & -2\end{array}\right], B=\left[\begin{array}{cc}4 & 1 \\ -3 & -2\end{array}\right]$ and $C=\left[\begin{array}{ll}-3 & 2 \\ -1 & 4\end{array}\right]$. Find $A^2+A C-5 B$.
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| No. of goals | $0$ | $1$ | $2$ | $3$ | $4$ | $5$ |
| No. of matches | $2$ | $4$ | $7$ | $6$ | $8$ | $3$ |