Question
Factorise the expressions: $ 2 x^3+2 x y^2+2 x z^2 $

Answer

$ 2 x^3+2 x y^2+2 x z^2 $
$ 2 x^3+2 x y^2+2 x z^2=2 x\left(x^2+y^2+z^2\right) $

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