︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎
︎ ︎ ︎ ︎
︎ ︎ ︎ ︎
︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎
︎ ︎ ︎ ︎
︎ ︎ ︎ ︎
︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎
︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎
︎ ︎ ︎ ︎
︎ ︎ ︎ ︎
︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎
︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎
︎ ︎ ︎ ︎
︎ ︎ ︎ ︎
︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎
︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎
︎ ︎ ︎ ︎
︎ ︎ ︎ ︎
︎ ︎ ︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎ ︎︎ ︎ ︎ ︎ ︎
︎ ︎ ︎ ︎ ︎ ︎
︎ ︎ ︎ ︎ ︎ ︎
=a^3+3a^2+5a-8a^2-24a-40-(5a-15-8a^2+24a+a^3-3a^2)=
=a^3+3a^2+5a-8a^2-24a-40-(29a-15-11a^2+a^3)=
=a^3+3a^2+5a-8a^2-24a-40-29a+15+11a^2-a^3=
=6a^2-48a-25