\(\displaystyle \begin{bmatrix} 10 & -13 \\ -8 & 11 \end{bmatrix} - \begin{bmatrix} -9 & -17 \\ -8 & 14 \end{bmatrix} \) = ?

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$$ \begin{bmatrix} 10 & -13 \\ -8 & 11 \end{bmatrix} - \begin{bmatrix} -9 & -17 \\ -8 & 14 \end{bmatrix} = \begin{bmatrix} 10-(-9) & -13-(-17) \\ -8-(-8) & 11-14 \end{bmatrix} $$ $$ = \boxed{\begin{bmatrix} 19 & 4 \\ 0 & -3 \end{bmatrix}} $$