My Math Forum question on homework. i need help.
 User Name Remember Me? Password

 Algebra Pre-Algebra and Basic Algebra Math Forum

 August 25th, 2008, 01:35 PM #1 Newbie   Joined: Aug 2008 Posts: 3 Thanks: 0 question on homework. i need help. i need to translate the following question into a mathematical expression. can someone help? the opposite of 3 squared.
 August 25th, 2008, 07:30 PM #2 Newbie   Joined: Aug 2008 Posts: 8 Thanks: 0 Re: question on homework. i need help. Opposite of three squared would be ?x That being the root sign with a three over the little notch on the left.
 August 26th, 2008, 05:29 AM #3 Senior Member   Joined: May 2008 From: York, UK Posts: 1,300 Thanks: 0 Re: question on homework. i need help. I'm not entirely sure what you mean - 3 squared is equal to 9, but the word 'opposite' doesn't have a well-defined meaning when applied to pure numbers. It could be -9, 1/9, even something like $\sqrt3$ depending on the context. If you can give a little more info on what the problem is, it might become clearer.
August 26th, 2008, 12:59 PM   #4
Senior Member

Joined: Jul 2008

Posts: 895
Thanks: 0

Re: question on homework. i need help.

Quote:
 Originally Posted by mattpi I'm not entirely sure what you mean - 3 squared is equal to 9, but the word 'opposite' doesn't have a well-defined meaning when applied to pure numbers.
Not disagreeing, but I think she means "opposite operation". As you suggest, it's not clear. So it might have been a search for the [positive, or "principal"] square root.

August 26th, 2008, 01:00 PM   #5
Senior Member

Joined: Jul 2008

Posts: 895
Thanks: 0

Re: question on homework. i need help.

Quote:
 Originally Posted by [Ampharos ]Opposite of three squared would be ?x
Why [color=#FF0000]cube[/color] root?

 August 27th, 2008, 10:45 AM #6 Global Moderator     Joined: Nov 2006 From: UTC -5 Posts: 16,046 Thanks: 938 Math Focus: Number theory, computational mathematics, combinatorics, FOM, symbolic logic, TCS, algorithms Re: question on homework. i need help. "Opposite" is often used for the additive inverse; if that's the case, the opposite of x is -x. The problem is still unclear even if that;'s the correct interpretation of opposite, though: is it (the opposite of 3) squared, or the opposite of (3 squared)?
August 27th, 2008, 05:16 PM   #7
Newbie

Joined: Aug 2008

Posts: 8
Thanks: 0

Re: question on homework. i need help.

Quote:
Originally Posted by Dave
Quote:
 Originally Posted by [Ampharos ]Opposite of three squared would be ?x
Why [color=#FF0000]cube[/color] root?
Whoops.
I got mixed up when three got involved. xP

That'd be Just regular root three then.

 Tags homework, question

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post orionankh Linear Algebra 6 April 16th, 2015 05:04 PM hamburgertime Algebra 2 February 17th, 2013 02:52 PM anoonpinkness Calculus 2 March 15th, 2011 10:35 AM alexis2 Advanced Statistics 1 December 19th, 2010 02:00 PM tinotino Advanced Statistics 3 March 1st, 2010 06:34 AM

 Contact - Home - Forums - Cryptocurrency Forum - Top