Question 764160
Put each power of {{{y}}} in its own column; in this case, the first column will be the {{{y^2}}}-column, the second column will be the {{{y}}}-column, and the third will be number without y - column
{{{y^2+4y___}}}
{{{__-4y-8}}}
______________
{{{y^2+0-8}}}
Answer: {{{y^2-8}}}