xxxxxxxxxx%%html<text style='color:#3636ff;'>$\mathscr{\begin{bmatrix}\begin{array}{c}G = \alpha * A * B^T \ + \ \beta * C^T * D \\ \hline &\;&\;&\;&\;&\;&\;&\;\end{array} \\\begin{array}{c}\alpha = 2, \ \beta = -5, \\A_{(2,3)} = \begin{pmatrix}-3 & -3 & -6 \\ -4 & -7 & 8 \\ \end{pmatrix}, \ B_{(4,3)} = \begin{pmatrix}2 & 8 & 7 \\ -5 & -6 & -2 \\ -8 & 4 & -8 \\ 7 & 4 & -6 \\ \end{pmatrix}, \\C_{(2,2)} = \begin{pmatrix}-2 & -4 \\ 3 & -5 \\ \end{pmatrix}, \ D_{(2,4)} = \begin{pmatrix}-2 & -3 & -1 & 3 \\ -2 & -9 & 8 & 9 \\ \end{pmatrix}. \\ \end{array} \\ \begin{array}{c}\hline &\;&\;&\;&\;&\;&\;&\;&\;&\; &\;&\;&\;&\;&\;&\;&\; \\G = ? \end{array} \end{bmatrix}}$</text>
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