n√a is called the index of the radical.
Radicals with the same index and same radicand are called like radicals.
like square roots
Square roots with the same radicand are called like square roots.
nth root of a number
If bn=a, then b is an nth root of a.
principal nth root
The principal nth root of a is written n√a.
An equation in which the variable is in the radicand of a square root is called a radical equation
rationalizing the denominator
The process of converting a fraction with a radical in the denominator to an equivalent fraction whose denominator is an integer is called rationalizing the denominator. square of a number
square root notation
square root of a number