Show that x=2 is the root of the equation x-6-12-3xx-3-32xx+2=0 and solve it

Show that x=2 is the root of the equation $|\begin{matrix} x & - 6 & - 1 \\ 2 & - 3 x & x - 3 \\ - 3 & 2 x & x + 2 \end{matrix}| = 0$ and solve it

Matching exercise

Match the items on the right to the items on the left.

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