Which expression is a cubic polynomial?
3x^2 - 1
x^3 - 1
x^2 - x + 3
3x^2 - x + 3
Would it be X^2 - x + 3??
Sorry, I'm not very good at these ! :p
i think:
x^3-1 because ^3 it is cub and the others are parabola
