simp only [mul_zero, add_zero, zero_mul]
R : Type u
inst✝ : CommRing R
e : ValidModel R
s t : R
⊢ Model.b8 e.toModel + 3 * 0 * Model.b6 e.toModel + 3 * 0 * 0 * Model.b4 e.toModel + 0 * 0 * 0 * Model.b2 e.toModel +
      3 * 0 * 0 * 0 * 0 =
    Model.b8 e.toModel
no goals