Suppose that $$f(x) = \frac{x^2}{3 x^2 + 6}.$$

(A) Find the smallest inflection point of $f$. (If there are no inflection points, enter -1000.)

Smallest inflection point =

(B) Find the largest inflection point of $f$. (If there are no inflection points, enter -1000.)

Largest inflection point =