a, a10, a11, a12, a21, a22, c1, c2, 
a11*c2+a21*c1
a12*c2+a22*c1
a11*c1*(2*a*c1^2+3*a12)
a12*c1*(4*a*c1^2+a12)
2*a*a11*c1^3-3*a10*a11*c1+a11*c1+a21*c2
16*a*a12*c1^3-6*a10*a12*c1-3*a11^2*c1+2*a22*c2+24*c1
