Science Memes

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Conversing with Mathematicians (mander.xyz)

submitted 3 months ago by [email protected] to c/[email protected]

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[–] [email protected] 15 points 3 months ago (12 children)

Found the math but no explanation.

[–] [email protected] 15 points 3 months ago (11 children)

The squareroot of 100 is ±10.

[–] [email protected] -2 points 3 months ago (10 children)

The square root is always positive, but you can plug it into the quadratic formula to get the two possible values.

[–] [email protected] 8 points 3 months ago

There's no reason to bring the quadratic formula into this. Square roots can be negative, but when talking about the square root it's normally assumed to be the principal square root, which is the positive one.

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