Radicals

Radicals are numbers that involve roots, like square roots or cube roots, rather than just whole numbers or basic fractions. They are written using a radical symbol (√ for square roots, ³√ for cube roots, etc.). For example, √9 equals 3 because 3 multiplied by itself equals 9. Radicals help express numbers that are roots of other numbers, especially when those roots are required in equations, calculations, or simplifications. They are fundamental in mathematics for working with non-integer solutions and for simplifying expressions involving roots.