Show that |(x, x^(2),y+z),(y,y^(2),z+x),...

Show that `|(x, x^(2),y+z),(y,y^(2),z+x),(z,z^(2),x+y)| = (y-z)(z-x)(x-y)(x+y+z)`.

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The correct Answer is:

`(x+y+z)(x-y)(y-z)(z-x)`

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