6. Factorise the expression with proper identity

216 x^{3} + y^{3} + z^{3} - 18 x y z

\(=\)

(i x + i + i) (i x^{i} + y^{i} + z^{i} - i x y - i z - i z x)

[Note: Insert answer as per the order of the identity and enter coefficient followed by variable. Use answer boxes placed in superscript to enter the exponents.]

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6. Factorise the expression with proper identity

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