v, u, b, a, r, 
r*u^2+u^3-a*u+r*u+u^2-a-b+r+u+1
r*v^2+v^3-a*v-r*v-v^2+a-b+r+v-1
3*r*u^2+4*u^3-2*a*u-b
3*r*v^2+4*v^3-2*a*v-b
