The Teaching Company ‘s The Great Courses Algebra II by Murray Siegel (Parts 2 & 3, DVD). Four DVDs in total, all DVDs are in excellent condition. The photos are the items you will receive. Thank you! Part 2 of 3 10 Lectures/ 30 minutes per lesson 2 DVDS Lesson 11: Solving Systems of Two Linear Equations Using Elimination Lesson 12: Solving Systems of Three Linear Equations and Systems of Linear Inequalities Lesson 13: Functions Lesson 14: Quadratic Functions Lesson 15: Solving Quadratic Equations Lesson 16: The Quadratic Formula Lesson 17: Imaginary Numbers Lesson 18: Quadratic and Rational Inequalities Lesson 19: Polynomial Division Lesson 20: Zeros of a Polynomial Part 3 of 3 12 Lectures/ 30 minutes per lecture 2 DVDS Lesson 21: Sketching Polynomials Lesson 22: Sketching Rational Functions Lesson 23: Square Roots and Cube Roots Lesson 24: Exponential Functions Lesson 25: Logarithmic Functions Lesson 26: Matrices and Determinants Lesson 27: Solving Systems of Equations Using Matrices Lesson 28: Recursive Functions Lesson 29: Sequences and Series Lesson 30: Introduction To Trigonometry