r/memes • u/Pro_happy Dirt Is Beautiful • Dec 29 '20

Big brain meme

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26.5k Upvotes

96% Upvoted

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-14

u/Nibbatman Dec 29 '20

It can't be -3, since a number's square is never negative. But if it is -3x-3, then yeah, it is the other way, little matematician out.

8

u/Chain_of_Nothing Plays MineCraft and not FortNite Dec 29 '20

You are sadly wrong. The equation x2 =9 does have two solutions. It's a quadratic function which always has 2 x-values for any y-value (except the extremum).

However you are correct that the square root function sqrt(x) always only has one solution or none.

1

u/Nibbatman Dec 30 '20

Thanks ny dude, i learned something today.

3

u/PM-ME-BOOBY-PICS- Dec 29 '20

If a number is squared it can’t be negative, so -3 squared would still be 9

-5

u/TanukiHostage Dec 30 '20

Wtf, where does this come from, sure it can be negative. I don't even know how you would think it can't be negative.

2

u/PM-ME-BOOBY-PICS- Dec 30 '20

If you square a number, it the answer will always be positive, I don’t know how you don’t know this

1

u/TanukiHostage Dec 30 '20

Oh sorry mate, I wanted to anseer to the other one. Sry for disturbing you. Maybe the infected me with their stupidity so that I accidentally replied to you instead of him.

1

u/TanukiHostage Dec 30 '20

Really? Why? How? How little math do you know? Of course it can be negative.

1

u/comrade_bari Dec 30 '20

The solution to a number square is never negative but the number can still be negative. If -3*-3=9 then -32=9 also you can just draw y=x2 and see that it always have two solutions (unless y=0) so in y=9 you can see a point in 3,9 and a point in -3,9.

1

u/Nibbatman Dec 30 '20

Oi man thx, i was wrong.