# adding square roots   80 videos

• #### Adding and Subtracting Complex Numbers

How to add and subtract complex numbers.

• #### 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
• #### Solving an Equation with Radicals

How to solve an equation with a square root.

##### Pre-AlgebraWhole Numbers

Using the number line to represent adding and subtracting whole numbers

• #### More Roots of Complex Numbers

##### PrecalculusPolar Coordinates and Complex Numbers

How to find the roots of a complex number quickly using four simple guidelines.

complex numbers trigonometric form complex roots modulus argument
• #### Adding and Subtracting Polynomials

##### Pre-AlgebraPolynomials

Adding and subtracting polynomials with pictures or aligning vertically

• #### Invertible Square Matrices and Determinants

##### PrecalculusSystems of Linear Equations and Matrices

How to determine whether a square matrix is invertible using its determinant.

square matrices invertible determinant zero determinant inverse of a 2x2 matrix
• #### Rectangle and Square Properties

##### GeometryPolygons

How to define a rectangle and a square.

equiangular polygon congruent diagonals bisect regular quadrilateral angle bisectors
• #### Adding and Subtracting Rational Expressions

##### Algebra 2Rational Expressions and Functions

How to add and subtract rational expressions.

rational expressions adding subtracting lcd least common denominator factoring
• #### Binomial Theorem

##### PrecalculusTopics in Discrete Math

How to define factorial expressions used in the binomial theorem.

square root
• #### Binomial Theorem

##### Algebra 2Polynomials

How to define factorial expressions used in the binomial theorem.

square root
• #### Adding/Subtracting Fractions- Like Denominators

##### Pre-AlgebraFractions and MIxed Numbers

Adding and subtracting fractions that have the same denominator, including a visual representation

• #### Adding/Subtracting Fractions- Unlike Denominators

##### Pre-AlgebraFractions and MIxed Numbers

Drawing pictures and procedures for adding or subtracting fractions with unlike denominators

• #### Factoring: Special Cases Part I

##### AlgebraFactoring

How to factor perfect square trinomials.

FOIL difference of perfect squares perfect square trinomial
• #### Finding the Vertex of a Parabola by Completing the Square

##### Algebra 2Quadratic Equations and Inequalities

How to find the vertex of a parabola.

vertex form completing the square parabola
• #### Finding the Vertex of a Parabola by Completing the Square

##### PrecalculusEquations of Lines, Parabolas and Circles

How to find the vertex of a parabola.

vertex form completing the square parabola

• #### The Inverse of a Square Matrix

##### PrecalculusSystems of Linear Equations and Matrices

How to determine whether two matrices are inverses.

matrices square matrices the identity matrix matrix multiplication invertible inverse matrix