Radical Expression

A radical expression is a mathematical expression that includes a root, such as a square root (√), cube root (∛), or higher roots. For example, the square root of 9 is written as √9, which equals 3. Radical expressions are used to represent numbers that can't be expressed as simple fractions or whole numbers, like √2. They can also involve variables, such as √(x + 1). Understanding radical expressions is important in various fields, including math, science, and engineering, as they often appear in equations and calculations.