## What are radicals in Algebra 2?

Explanation: To simplify radicals, we need to factor the expression inside the radical. A radical can only be simplified if one of the factors has a square root that is an integer. For this problem, we’ll first find all of the possible radicals of 12: 1 & 12, 2 & 6, and 3 & 4.

**What are the rules of exponents and radicals?**

If a root is raised to a fraction (rational), the numerator of the exponent is the power and the denominator is the root. When raising a radical to an exponent, the exponent can be on the “inside” or “outside”. Raising a base to a negative exponent means taking the reciprocal and making the exponent positive.

### Why do we need radical and rational exponents in mathematics?

A rational exponent is an exponent in the form of a fraction. Any expression that contains the square root of a number is a radical expression. Radical expressions are utilized in financial industries to calculate formulas for depreciation, home inflation and interest.

**What is the difference between radicals and rational exponents?**

If you combine a radical with an integer exponent then you can express the same concept as a rational exponent. The differences are basically notational. Note that this assumes that x>0 . If x≤0 or is a complex number then these identities do not always hold.

#### What is a rational exponent?

Rational exponents (also called fractional exponents) are expressions with exponents that are rational numbers (as opposed to integers ). While all the standard rules of exponents apply, it is helpful to think about rational exponents carefully.

**How do you solve a polynomial equation with radicals?**

To solve a radical equation:

- Isolate the radical expression involving the variable.
- Raise both sides of the equation to the index of the radical.
- If there is still a radical equation, repeat steps 1 and 2; otherwise, solve the resulting equation and check the answer in the original equation.

## What is the solution of polynomial equation by radicals?

Solving a polynomial by radicals is the expression of all roots of a polynomial using only the four basic operations: addition, subtraction, multiplication and division, as well as the taking of radicals, on the arithmetical combinations of coefficients of any given polynomial.