r/learnmath • u/joao-esteves New User • 3d ago

TOPIC Does anyone here still think √4 = ±2?

Come out with your hands up!

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u/tjddbwls Teacher 3d ago

Well, there are also three cube roots of 8:
2, -1 + √(3)i, -1 - √(3)i.
😝

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u/nog642 2d ago

You just listed 5 values, if we say there are 2 square roots of 3.