Y square +y-3=0, and both sides are multiplied by Y, Y cube +y square -3y=0, so Y cube =3y-y square.

Substitute in the demand and replace the y cube to get 3y-y square +4y square +20 1 1.

=3(y +y)+20 1 1

Because y squared +y=3 gives =3*3+20 1 1=2020.

Answer B.