How Do You Simplify Radical Expressions?
When simplifying square roots, we give the positive and negative answer if solving an equation that did not originally have a square root. Otherwise, we give only the principal root. Square roots of negative numbers have non-real answers, which is why square roots of variables sometimes include the condition that the variable is greater than zero. Knowledge of math radicals is important when solving quadratic equation problems.
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- Cynthia Kirkeby, 'How Do You Simplify Radical Expressions?', ClassBrain Math Tutorials, 2 March 2013, 09:57 UTC, <http://www.classbrainmath.com/2010/03/simplify-radical-expressions/> [accessed 19 June 2013]
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- Cynthia Kirkeby, “How Do You Simplify Radical Expressions?.” ClassBrain Math Tutorials, http://www.classbrainmath.com/2010/03/simplify-radical-expressions/ [accessed June 19, 2013].
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- Cynthia Kirkeby, How Do You Simplify Radical Expressions? [Internet]. ClassBrain Math Tutorials; 2013 March 2, 09:57 UTC [cited 2013 Jun 19]. Available from: http://www.classbrainmath.com/2010/03/simplify-radical-expressions/.
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- How Do You Simplify Radical Expressions?, http://www.classbrainmath.com/2010/03/simplify-radical-expressions/ (last visited Jun. 19, 2013).
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- Cynthia Kirkeby, How Do You Simplify Radical Expressions?. ClassBrain Math Tutorials. March 2, 2013, 09:57 UTC. Available at: http://www.classbrainmath.com/2010/03/simplify-radical-expressions/. Accessed June 19, 2013.
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