1.

Sigma x (y^(3) -z^(3)) = ___

Answer»

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

Solution :USE FACTORIZATION concept


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