nth root
for any real numbers a and b, and any positive integer n, if dn = b then a is the nth root of
radical equation
an equation that has a variable in a radicand or has a variable with a rational exponent
principal root
when a number has 2 real roots, the positive root is the
square root equation
radical equation in which the radical has an index of 2
index
gives the degree of the root
rationalize the denominator
Rewrite it so there are no radicals in any denominator and no denominators in any radical
like radicals
Radical expressions that have the same index and the same radicand
radicand
Number under the radical sign
rational exponent
Another way to write a radical expression