FantastalisticJonas
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- Mar 12, 2008
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What is the NEGATIVE SQUARE ROOT OF 125?
Please help!
Please help!
Square roots: find negative square root of 125
- Thread starter FantastalisticJonas
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FantastalisticJonas
New member
- Joined
- Mar 12, 2008
- Messages
- 19
Re: Square roots
I don't know where to start! Is there a formula? My mom suggests that I use the Trial-and-error method. Lol.
I don't know where to start! Is there a formula? My mom suggests that I use the Trial-and-error method. Lol.
Re: Square roots
Do you mean this?
- sqrt(125)
If so, rewrite sqrt(125) as sqrt(25*5), or sqrt(25)*sqrt(5)
Then you have
- sqrt(25)*sqrt(5)
Can you take it from there?
FantastalisticJonas said:What is the NEGATIVE SQUARE ROOT OF 125?
Please help!
Do you mean this?
- sqrt(125)
If so, rewrite sqrt(125) as sqrt(25*5), or sqrt(25)*sqrt(5)
Then you have
- sqrt(25)*sqrt(5)
Can you take it from there?
- Joined
- Apr 12, 2005
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- 11,339
Prime Factorization is your friend.
125 = 5*25 = 5*5*5
This makes it very easy to see if there are any pieces of square roots in there. This was demonstrated above.
Other than that, don't you have a calculator?
Square roots are not tricky. If you have the positive square root, just add the negative sign and you are done. Cube roots are much trickier if you want to find ALL of them.
125 = 5*25 = 5*5*5
This makes it very easy to see if there are any pieces of square roots in there. This was demonstrated above.
Other than that, don't you have a calculator?
Square roots are not tricky. If you have the positive square root, just add the negative sign and you are done. Cube roots are much trickier if you want to find ALL of them.