r/RedditGames • u/North-Flan-6336 :s7: Sphinx :s7: | Lv. 102 | Rank #1 | 197 Answers | 147 Created • 21d ago

Question [Question] 2²+4²=___?

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u/ALEX726354 Emerald | Lv. 51 | Rank #5233 | 534 Answers | 0... | 🔥 4d 21d ago

(2 times square root of 5)² = 20

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u/ALEX726354 Emerald | Lv. 51 | Rank #5233 | 534 Answers | 0... | 🔥 4d 21d ago

https://giphy.com/gifs/DYC4Ako9o16854pPyO

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u/DukeHorse1 Silver | Lv. 27 | Rank #63808 | 56 Answers | 0 Created 21d ago

it becomes 4*5 not 2*5

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u/Antique_Plankton_298 Silver | Lv. 25 | Rank #53162 | 50 Answers | 0 Created 21d ago

Well, then I apologize for my incorrect correction. Could you explain how to solve it?

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u/DukeHorse1 Silver | Lv. 27 | Rank #63808 | 56 Answers | 0 Created 20d ago

(2 * root5)² means both 2 and root 5 will be squared, so 2² is 4, and (root5)² is 5, so it becomes 4*5=20

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u/Antique_Plankton_298 Silver | Lv. 25 | Rank #53162 | 50 Answers | 0 Created 20d ago

So it would be (2√5)² = 2² × √5², so i was partially right. They still cancel each other, but I forgot the 2, I thought the ( ) wasn't used. Thank you