Question: If ( A=left(begin{array}{cccc}1 & 2 & 0 & -2 -1 & 3 & 1 & 1end{array} ight) ) and ( B=left(begin{array}{cccc}4 & -3 &

If \$ A=\\left(\\begin{array}{cccc}1 & 2 & 0 & -2 \\\\ -1 & 3 & 1 & 1\\end{array}\ ight) \$ and \$ B=\\left(\\begin{array}{cccc}4 & -3 & 1 & 1 \\\\ 2 & 2 & 0 & 4\\end{array}\ ight) \$ then find the \$ (2,4) \$ entry of \$ 6 A+9 B \$

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