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# 11.2: Simplification of Radical Expressions

Difficulty Level: Basic Created by: CK-12
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### Vocabulary Language: English Spanish

A mathematical expression involving a root by means of a radical sign. The word radical comes from the Latin word radix, meaning root.

Rational Exponent Property

For integer values of $x$ and whole values of $y$: $a^{\frac{x}{y}}= \sqrt[y]{a^x}$

A radical expression is an expression with numbers, operations and radicals in it.

Rationalize the denominator

To rationalize the denominator means to rewrite the fraction so that the denominator no longer contains a radical.

Variable Expression

A variable expression is a mathematical phrase that contains at least one variable or unknown quantity.

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