How to do Radical Expressions on the Calculator

Square Root √ = first push

 then push

 

Cube root ³√ = first push

then push 4

 

 

x root ^x√ = First push 

then push 5

7-2 Definitions

New Vocabulary: rationalize the denominator.

Definition 1: To rationalize the denominator of a function, rewrite it so there are no radicals in any denominator and no denominators in any radical.
Definition 2: You make sure that there is no square,cube, etc. roots in the denominator, and no fractions inside a square, cube, etc. root.

lesson 7-2 Normal

 

When multiplying radicals, you must multiply the numbers OUTSIDE (O) the radicals AND then multiply the numbers INSIDE (I) the radicals.

When dividing radicals, you must divide the numbers OUTSIDE (O) the radicals AND then divide the numbers INSIDE (I) the radicals.