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z^3 - 3 z^2 (1) + 3 z (1)^2 - (1)^3
z^3 - 3 z^2 + 3 z - 1
-(z+1)^3 es suma de cubos
-(z^3 + 3 z^2 + 3z + 1)
-z^3 - 3 z^2 - 3z - 1
Suerte, no de olvides de calificar