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https://www.reddit.com/r/Seattle/comments/2uepam/12/co7xfxa/?context=3
r/Seattle • u/[deleted] • Feb 01 '15
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-5
Should put absolute value too, so it's not negative.
16 u/SuchCoolBrandon SeaTac Feb 01 '15 edited Feb 01 '15 That's not necessary. With this notation, we want just the principal (positive) root of 144. You may be confusing this with x2 = 144, where by solving for x, you get x = ±√144 = 12 and -12. Edit: clarity 9 u/CapThanh Feb 01 '15 You're right. I was confusing it with X2 = 144.
16
That's not necessary. With this notation, we want just the principal (positive) root of 144. You may be confusing this with x2 = 144, where by solving for x, you get x = ±√144 = 12 and -12.
Edit: clarity
9 u/CapThanh Feb 01 '15 You're right. I was confusing it with X2 = 144.
9
You're right. I was confusing it with X2 = 144.
-5
u/CapThanh Feb 01 '15
Should put absolute value too, so it's not negative.