Question 337612
{{{(x +1/2)(x^2 +4x +1/2)=x(x^2 +4x +1/2)+(1/2)(x^2 +4x +1/2)}}}
{{{(x +1/2)(x^2 +4x +1/2)=(x^3 +4x^2 +(x/2))+(x^2/2 +2x +1/4)}}}
{{{(x +1/2)(x^2 +4x +1/2)=x^3 +(4+1/2)x^2 +(2+1/2)x +1/4}}}
{{{(x +1/2)(x^2 +4x +1/2)=x^3 +(9/2)x^2 +(5/2)x +1/4}}}