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Algebra/radical expressions

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Expert: - 1/18/2008


Question
How is adding radical expressions similar to adding polynomial expressions? How is it different?

Answer
It is similer in that you still have like terms:
for polynomials, like terms have the same exponent(s),
for radical expression, like terms have the same "radical"
For example:
x^3 - 3x^2 + 5x^2 = 8x^2 and
cuberoot(x) - 3sqrt(x) +5sqrt(x) = cuberoot(x) - 8sqrt(x)

Different?  Hmm, cannot think of that at this time...

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Abe Mantell

Expertise

Hello, I am a college professor of mathematics and regularly teach all levels from elementary mathematics through differential equations, and would be happy to assist anyone with such questions!

Experience

Over 15 years teaching at the college level.

Organizations
NCTM, NYSMATYC, AMATYC, MAA, NYSUT, AFT.

Education/Credentials
B.S. in Mathematics from Rensselaer Polytechnic Institute
M.S. (and A.B.D.) in Applied Mathematics from SUNY @ Stony Brook

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