Question

what is -x^3+x^4+x

Answer 1

What do you need to do with this ?

Answer 2

\[-x^{3}+x^{4}+x=x^{4}-x^{3}+x=x(x^{3}-x^{2}+1)=\]
\[x(x^{3}+1-x^{2})=x(x^{3}+1^{3}-x^{2})=\]
\[x(~~~~~~~~~~~~x^{3}+1^{3}~~~~~~~~~-x^{2})=\]\[x(~~~(x+1)(x^{2}+2x+1)~~~-x^{2}~~).\]