• jacksilver@lemmy.world
      link
      fedilink
      English
      arrow-up
      8
      arrow-down
      1
      ·
      5 months ago

      Yeah, I think the point is that the person answering was wrong/over complicating. If x=10i, then x^2 would be -100 (or potentially -10 depending on what you think the ^2 is applied to).

    • Ravi@feddit.org
      link
      fedilink
      English
      arrow-up
      5
      arrow-down
      1
      ·
      5 months ago

      Depends on what are the allowed values for x are. Real numbers, complexe numbers, binary or I made up my own numbers ;)

    • Malgas@beehaw.org
      link
      fedilink
      English
      arrow-up
      3
      ·
      5 months ago

      Probably what they were going for, but there are literally an infinite number of exotic arithmetic spaces you could ask this question in. For example, x=10 works in any ring with a modulus greater than 100 and less than 1000.

      • Umbrias@beehaw.org
        link
        fedilink
        English
        arrow-up
        1
        ·
        5 months ago

        fortunately math problems are administered in the context of the class, so it will be pretty obvious that it’s in the complex plane.