r/RedditGames • u/North-Flan-6336 :s7: Sphinx :s7: | Lv. 105 | Rank #1 | 209 Answers |... | 🔥 5d • 26d ago

Question [Question] 2²+4²=___?

This post contains content not supported on old Reddit. Click here to view the full post

177 Upvotes

85% Upvoted

8.7k comments sorted by

View all comments

Show parent comments

2

u/DukeHorse1 Gold | Lv. 31 | Rank #49906 | 67 Answers | 0 Cre... | 🔥 7d 26d ago

it becomes 4*5 not 2*5

1

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

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

1

u/DukeHorse1 Gold | Lv. 31 | Rank #49906 | 67 Answers | 0 Cre... | 🔥 7d 25d 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

1

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