Question$$\begin{array}{l} f(x)=x^{3}-2 x+6 \\ g(x)=3 x^{3}-2 x^{2}+4 x-2 \end{array}$$
Find $(f-g)(x)$. $2 x^{3}-2 x^{2}+6 x-8$ $2 x^{3}-2 x^{2}+6 x+8$ $-2 x^{3}+2 x^{2}-6 x+8$ $4 x^{3}-2 x^{2}+2 x+4$