Radical Expressions/Fractional Exponents
A radical expression may be written as an
expression with fractional exponents and vice-versa.
The radical expression
becomes a fractional exponent expression. Notice the
position of the numerator and denominator of the fraction … the exponent
on the radicand becomes the numerator and the index becomes the
denominator. To reverse the situation, the fractional exponent expression
becomes a radical expression … once again, the index
becomes the denominator. The last example can then be further
simplified: . It would be helpful to review the
Rules of Exponents since these rules also apply to expressions
with fractional exponents.
General Algebra Tips
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