a^2 - a + 8.0*c*d + 16.0*a^2*c^2 - 9.0*b^2/c^2 - 5.33333333333333*b*d^2
2 2 2 2 3 2 4 2 2 - 27*b - 3*a*c + 3*a *c + 24*d*c + 48*a *c - 16*b*c *d ------------------------------------------------------------ 2 3*c
2 2 2 2 3 2 4 2 2 - 27*b - 3*a*c + 3*a *c + 24*d*c + 48*a *c - 16*b*c *d ------------------------------------------------------------ 2 3*c
2 2 2 2 3 2 4 2 2 - 27*b - 3*a*c + 3*a *c + 24*d*c + 48*a *c - 16*b*c *d ------------------------------------------------------------ 2 3*c