number of roots 109 videos

Multiplying Complex Numbers
Precalculus Polar Coordinates and Complex Numbers
How to multiply two complex numbers in trigonometric form.
complex numbers trigonometric form modulus argument 
Square Roots
PreAlgebra Decimals and Percents
Understanding squaring and square roots, including decimal approximations

Introduction to Real Numbers
Algebra 2 Real Numbers
How to classify different types of real numbers.
real numbers natural counting whole integer rational irrational 
Solving Equations with Squares and Cubes
Geometry Volume
How to solve equations using square roots or cube roots.
square root cube root 
The Discriminant of a Quadratic Equation
Algebra 2 Quadratic 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 
Trigonometric Form of Complex Numbers
Precalculus Polar Coordinates and Complex Numbers
How to express a complex number in trigonometric form.
complex numbers the complex plane modulus argument sine cosine tangent rectangular form trigonometric form 
Deccimal Approximations of Square Roots
PreAlgebra Decimals and Percents
Finding decimal approximations of square roots without a calculator

Applied Linear Equations: Consecutive Numbers
Precalculus Linear Equations and Inequalities
How to solve a problem involving consecutive integers.
consecutive numbers 
Applied Linear Equations: Consecutive Numbers
Algebra 2 Linear Equations
How to solve a problem involving consecutive integers.
consecutive numbers 
Multiplying and DIviding with Mixed Numbers
PreAlgebra Fractions and MIxed Numbers
Multiplying or dividing with mixed numbers

Number of Handshakes at a Party
Geometry Reasoning, Diagonals, Angles and Parallel Lines
How to determine the number of handshakes possible in a group of a certain number of people.
mathematical modeling non linear functions diagonals 
The Complex Plane
Precalculus Polar Coordinates and Complex Numbers
How to plot complex numbers on the complex plane.
real numbers the number line complex numbers imaginary numbers the complex plane 
Number of Diagonals in a Polygon
Geometry Reasoning, Diagonals, Angles and Parallel Lines
How to determine the number of diagonals in a polygon.
vertex diagonal non consecutive vertices polygon 
Properties of Real Numbers
Algebra 2 Real Numbers
How to define the properties of real numbers.
associative commutative distributive identity inverse 
Converting Complex Numbers From Rectangular Form to Trigonometric
Precalculus Polar Coordinates and Complex Numbers
How to convert a complex number from rectangular form to trigonometric form.
complex numbers rectangular form trigonometric form modulus argument 
Converting Improper Fractions and Mixed Numbers
PreAlgebra Fractions and MIxed Numbers
Vocabulary of improper fractions and mixed numbers

Chemistry Mole
Chemistry Chemical Reactions
The meaning and functionality of Avogadro's number in chemistry.
chemistry mole Avogadro's number 
Introduction to Radicals
Algebra 2 Roots and Radicals
How to know when to include a plus and minus on a square root problem.
simplifying square roots