Prove the following identities - a+xyzxa+yzxya+z=a2(a+x+y+z)

Prove the following identities - $|\begin{matrix} a + x & y & z \\ x & a + y & z \\ x & y & a + z \end{matrix}| = a^{2} (a + x + y + z)$

Matching exercise

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

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