Algebra: Quadratic Equations
Sal Khan
Master quadratic equations! Learn to solve and graph them with this comprehensive course from Sal Khan.
More resources on Quadratic Equations
Introduction to Algebra
Master quadratic equations with this AoPS course! Learn key concepts and problem-solving strategies from expert faculty.
Algebra: Structure and Method
Classic Houghton Mifflin first-year algebra textbook by Dolciani and colleagues, built on careful definitions and properties of the real numbers. Covers linear equations, polynomials, factoring, and solving quadratics by factoring, completing the square, and the quadratic formula, with extensive graded exercise sets.
Algebra: Elementary to Advanced - Polynomials and Roots
Third course in Johns Hopkins's algebra sequence, covering exponential functions, polynomial arithmetic and factoring, square and nth roots, and percent and interest applications. Finishes with a cumulative exam, preparing you for precalculus, statistics or data science coursework.
mathsisfun.com
MathIsFun.com is a beginner-friendly math site that explains concepts with clear, step-by-step lessons and interactive activities. It covers topics from algebra and linear equations to geometry, fractions, data, and more, with practice problems, worksheets, and quizzes.