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[-] Ravi@feddit.org 9 points 5 months ago

No definition what values are suitable for x.

[-] quicksand@lemm.ee 20 points 5 months ago

x has to be -10, right? Or am I missing something?

[-] jacksilver@lemmy.world 7 points 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).

[-] Khanzarate@lemmy.world 22 points 5 months ago

They said x=10i^2, not 10i. Difference is it equals -10, and they chose not to simplify.

[-] SoleInvictus@lemmy.blahaj.zone 5 points 5 months ago

They're correct, it's just overcomplicated as fuck in ways that are correct but completely irrelevant to the question.

[-] Ravi@feddit.org 4 points 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 ;)

[-] WolfLink@sh.itjust.works 4 points 5 months ago

The answer in the meme (10i^2) is -10

[-] Malgas@beehaw.org 3 points 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 1 points 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.

this post was submitted on 24 Jul 2024
363 points (96.7% liked)

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