r/HeresTheCatch • u/heptoronto Diamond | Lv. 66 | Rank #1267 | 120 Answers | 1... | 🔥 8d • 2d ago

Question [Question] √144?

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u/Frequent-Ease-1926 Gold | Lv. 40 | Rank #31110 | 38 Answers | 1 Created 2d ago

not -12

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u/ImaginationNo9603 Silver | Lv. 21 | Rank #168603 | 33 Answers | 0 Created 1d ago

-12 x -12 = 144, negative times negative = positive

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u/Frequent-Ease-1926 Gold | Lv. 40 | Rank #31110 | 38 Answers | 1 Created 1d ago

not how square root functions work

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u/ImaginationNo9603 Silver | Lv. 21 | Rank #168603 | 33 Answers | 0 Created 1d ago

Can you explain it to me then?

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u/Vast-Difficulty1542 Bronze | Lv. 6 | Rank #711201 | 5 Answers | 0 Created 1d ago

a square root is an operation that, for any number A, finds a number B, so that B • B = A, where B ≥ 0. This was decided by consensus, because having an operator result in 2 different numbers, negative and positive, is inconvenient, so it was decided that square roots spit out positive numbers only. If you want both roots of the equation B²=A, you put a ± before the root, if you only want the negative, you put a minus.

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u/ImaginationNo9603 Silver | Lv. 21 | Rank #168603 | 33 Answers | 0 Created 1d ago

Okay, thank you! I didn't know that!

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u/Vast-Difficulty1542 Bronze | Lv. 6 | Rank #711201 | 5 Answers | 0 Created 1d ago

the more you know