For a problem where you have tosimplify$\displaystyle 3x^3-2x+9-7x$, would the correct answer be $\displaystyle 3x^3-9x+9$ or $\displaystyle 3(x^3-3x+3)$?

How about a problem asking forsimplifacatonon $\displaystyle 4x-2$, would the answer be $\displaystyle 2(x-1)$ or that it is alreadyfully simplified?