# complex roots   20 videos

• #### Adding and Subtracting Complex Numbers

How to add and subtract complex numbers.

• #### Simplifying Complex Fractions

##### Algebra 2Rational Expressions and Functions

How to simplify a complex fraction.

complex fractions dividing by a fraction flip and multiply
• #### Rational Roots Theorem

##### Algebra 2Factoring

How to use the rational roots theorem.

rational roots theorem
• #### Rationalizing the Denominator with Higher Roots

How to rationalize the denominator with a higher root.

rationalizing the denominator higher root
• #### Multiplying Radicals of the Same Root

How to multiply radicals of the same root together.

• #### Multiplying Radicals of Different Roots

How to multiply radicals together when they are different roots.

multiplying roots different index different roots rational exponents
• #### Solving Quadratic Equations Using Square Roots

##### Algebra 2Quadratic Equations and Inequalities

How to solve quadratic equations using square roots.

square root
• #### Multiplying Complex Numbers

How to multiply imaginary numbers.

complex numbers multiplying i
• #### Dividing Complex Numbers

How to rationalize the denominator when dealing with an imaginary number.

dividing by i complex numbers

How to know when to include a plus and minus on a square root problem.

simplifying square roots
• #### Radicals and Absolute Values

How to know when to include a absolute value when simplifying a square root.

absolute value square roots even root odd power
• #### Vocabulary of Quadratic Polynomials

##### Algebra 2Quadratic Equations and Inequalities

How to label the roots of a quadratic polynomial, solutions to a quadratic equation, and x-intercepts or roots of a quadratic function.

roots x intercepts solutions excluded values zeros function
• #### Binomial Theorem

##### Algebra 2Polynomials

How to define factorial expressions used in the binomial theorem.

square root
• #### Solving an Equation with Radicals

How to solve an equation with a square root.

• #### The Discriminant of a Quadratic Equation

##### Algebra 2Quadratic Equations and Inequalities

How to use the discriminant to know the number and type of solutions to a quadratic.

discriminant type of solution number of solutions type of roots number of roots
• #### Evaluating Rational Exponents

How to evaluate a fractional exponent two ways.

evaluating rational exponents power over root
• #### Rational Exponents with Negative Coefficients

How to know when a negative coefficient is associated with power.

evaluating rational exponents power over root negative
• #### Introduction to Imaginary Numbers

How to define an imaginary number.

imaginary number i square root of a negative
• #### Solving a Quadratic by Completing the Square

##### Algebra 2Quadratic Equations and Inequalities

How to complete the square.

square root property completing the square plus or minus
• #### Overview of the Different Methods of Solving a Quadratic Equation

##### Algebra 2Quadratic Equations and Inequalities

How to know which method to use when solving a quadratic equation.

factoring square root property completing the square quadratic formula pros cons comparison