Question 316435
{{{(x+1)(x^2-x+1)=x(x^2-x+1)+1(x^2-x+1)}}}
{{{(x+1)(x^2-x+1)=(x^3-x^2+x)+(x^2-x+1)}}}
{{{(x+1)(x^2-x+1)=x^3+1}}}