Question 467141
{{{3(2y^2-2y+3)-2y(2-y^2)}}}



{{{3(2y^2)+3(-2y)+3(3)-2y(2)-2y(-y^2)}}}



{{{6y^2-6y+9-4y+2y^3}}}



{{{2y^3+6y^2-10y+9}}}



So {{{3(2y^2-2y+3)-2y(2-y^2)=2y^3+6y^2-10y+9}}}