Prove the following identities - x+42x2x2xx+42x2x2xx+4=(5x+4)(4-x)2

Prove the following identities - $|\begin{matrix} x + 4 & 2 x & 2 x \\ 2 x & x + 4 & 2 x \\ 2 x & 2 x & x + 4 \end{matrix}| = (5 x + 4) (4 - x)^{2}$

Matching exercise

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

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