Precalculus

Equations and Inequalities Video Review Lessons

Linear Equations
• An Introduction to Solving Equations
• Solving a Linear Equation
• Solving a Linear Equation with Rationals
• Solving a Linear Equation That Has Restrictions
Word Problems with Linear Equations: Math Topics
• An Introduction to Solving Word Problems
• Solving for Perimeter
• Solving a Linear Geometry Problem
• Solving for Consecutive Numbers
• Solving to Find the Average
Word Problems with Linear Equations: Applications
• Solving for Constant Velocity
• Solving a Problem about Work
• Solving a Mixture Problem
• Solving an Investment Problem
• Solving Business Problems
Quadratic Equations: Some Solution Techniques
• Solving Quadratics by Factoring
• Solving Quadratics by Completing the Square
• Completing the Square: Another Example
Quadratic Equations and the Quadratic Formula
• Proving the Quadratic Formula
• Using the Quadratic Formula
• Predicting the Type of Solutions Using the Discriminant
Quadratic Equations: Special Topics
• Solving for a Squared Variable
• Finding Real Number Restrictions
• Solving Fancy Quadratics
Word Problems with Quadratics: Math Topics
• An Introduction to Word Problems with Quadratics
• Solving a Quadratic Geometry Problem
• Solving with the Pythagorean Theorem
Word Problems with Quadratics: Applications
• Solving a Motion Problem
• Solving a Projectile Problem
• Solving Other Problems
Radical Equations
• Determining Extraneous Roots
• Solving an Equation Containing a Radical
• Solving an Equation with Two Radicals
• Solving an Equation with Rational Exponents
Variation
• An Introduction to Variation
• Direct Proportion
• Inverse Proportion
Solving Inequalities
• An Introduction to Solving Inequalities
• Solving Compound Inequalities
• More on Compound Inequalities
• Solving Word Problems Involving Inequalities
Inequalities: Quadratics
• Solving Quadratic Inequalities
• Solving Quadratic Inequalities: Another Example
Inequalities: Rationals and Radicals
• Solving Rational Inequalities
• Solving Rational Inequalities: Another Example
• Determining the Domains of Expressions with Radicals
Absolute Value
• Matching Number Lines with Absolute Values
• Solving Absolute Value Equations
• Solving Equations with Two Absolute Value Expressions
• Solving Absolute Value Inequalities
• Solving Absolute Value Inequalities: More Examples