Question 369633
{{{(x+1/7)^3=(x+1/7)(x+1/7)^2}}}
{{{(x+1/7)^3=(x+1/7)(x^2+(2/7)x+1/49)}}}
{{{(x+1/7)^3=(x)(x^2+(2/7)x+1/49)+(1/7)(x^2+(2/7)x+1/49)}}}
{{{(x+1/7)^3=(x)(x^3+(2/7)x^2+(1/49)x)+((1/7)x^2+(2/49)x+1/343)}}}
{{{highlight((x+1/7)^3=x^3+(3/7)x^2+(3/49)x+1/343))}}}