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Question
When solving a radical equation, how do we use the principle of powers to eliminate radicals?
Tuwana~
What is the 'principle of powers'? I will be making an assumption that what you mean is if you have a square root of a number then you will want to square both sides, and if you have a cube root you will want to raised both sides to the third power, and if you have an nth root you will want to raise both sides to the power of n. Otherwise the only other thing I can think of is rational exponents where if you rewrite square root of say 2^4 then you really have
(2^(1/2))^4 = 2^2 = 4
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Sherry Wallin
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I can answer most questions up through Calculus and some in Number Theory and Abstract Algebra.
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I have had my Bachelor's Degree since 1987 and have been a teacher since 1988. I earned my Masters Degree in Mathematics May 2010. I have been teaching at the same community college since 2002.
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I have taught 12 years at the community college level, medical college, and technical college as well as a high school instructor and alternative education instructor and charter school instructor.
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Master's GPA 3.56
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