Show that: `|a b-cc+b a+c b c-a a-bb+a c|=(a+b+c)(a^2+b^2+c^2)dot`

Answer

Proved

Explanation

\begin{aligned}
&=\left|\begin{array}{ccc}
a & b-c & c+b \\
a+c & b & c-a \\
a-b & b+a & c
\end{array}\right|\\ \\
&\begin{gathered}
c_{1} \rightarrow a c_{1} \\ \\
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