If x is an integer, and 196 < x^2 <= 361, which…

If x is an integer, and 196 < x^2 <= 361, which of the following is the sum of all possible values of x?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #24842