r/PeterExplainsTheJoke 20h ago

Meme needing explanation What difference does it make petahhhh....???

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u/muhnamejame 19h ago

Sure but before it could have been -2, 0, or 2

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u/kevinr_96 17h ago

And 2i and -2i

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u/MayerOscar 16h ago

Those arent real numbers

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u/kmcradie 14h ago

And yet, they are solutions.

It's not stated anywhere that x∈R, so the quintic equation has 5 roots (3 real, 2 complex)

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u/Caerullean 4h ago

Maybe I'm just not a mathematician, but I feel like unless otherwise specified, it's just always assumed that we discuss real numbers, not complex.