Posted by **C** on Tuesday, July 8, 2008 at 4:27pm.

Is this a true statement?

Polynomials and radical expressions differ because radical expressions contain rational numbers as exponents and polynomials do not.

- algebra -
**drwls**, Tuesday, July 8, 2008 at 5:06pm
I think you have it backwards, with some additonal miconceptions.

Polynomials have rational (and, in fact, integer) exponents.

Radical expressions contain variables to fractional powers. A square root corresponds to an exponent of 1/2. That is still a rational number.

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