If integers a and b are distinct factors of 30, which of…

If integers a and b are distinct factors of 30, which of the following CANNOT be a factor of 30? I. a^b + b^2 II. (a + b)^2 III. a + b

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 #1678