2 ms·More concretely, it's true only for real numbers - so -4 ⋚ 7 is true, but 3+2i ⋚ 5 is false.by skykooler 5y agoMore concretely, it's true only for real numbers - so -4 ⋚ 7 is true, but 3+2i ⋚ 5 is false.