Precalculus Examples

$[\begin{array}{c} 9 & - 4 \\ 1 & - 1 \end{array}] z - [\begin{array}{c} - 6 & 3 & 5 \\ - 2 & - 4 & - 7 \end{array}] = [\begin{array}{c} 18 & 26 & - 6 \\ 5 & 5 & 8 \end{array}]$

Step 1

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$[\begin{array}{c} 9 & - 4 \\ 1 & - 1 \end{array}] z - [\begin{array}{c} - 6 & 3 & 5 \\ - 2 & - 4 & - 7 \end{array}] = [\begin{array}{c} 18 & 26 & - 6 \\ 5 & 5 & 8 \end{array}]$