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Learn introductory algebra concepts and skills with Khan Academy's free, interactive lessons.
Algebra foundations | Algebra 1 | Math | Khan Academy
Let's look at the history and beauty of algebra, and review some fundamental ideas and tools we'll use throughout the course. **Unit guides are here!** Power up your classroom with engaging strategies, tools, and activities from Khan Academy’s learning experts.
Khan Academy
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Linear Algebra - Khan Academy
Learn linear algebra—vectors, matrices, transformations, and more. Skip to main content If you're seeing this message, it means we're having trouble loading external resources on our website.
Algebra II - Khan Academy
Algebra 2 | Math | Khan Academy. Unit 1 Polynomial arithmetic. Unit 2 Complex numbers. Unit 3 Polynomial factorization. Unit 4 Polynomial division. Unit 5 Polynomial graphs. Unit 6 Rational exponents and radicals. Unit 7 Exponential models. Unit 8 Logarithms.
Sequences | Algebra (all content) | Math | Khan Academy
Get ready for Algebra 2; Get ready for Precalculus; Get ready for AP® Calculus; Get ready for AP® Statistics; Math: high school & college; Algebra 1; Geometry; Algebra 2; ... Introduction to algebra. Unit 2. Solving basic equations & inequalities (one variable, linear) Unit 3. Linear equations, functions, & graphs. Unit 4. Sequences. Unit 5 ...
Intro to logarithms (video) | Logarithms | Khan Academy
Get ready for Algebra 1; Get ready for Geometry; Get ready for Algebra 2; Get ready for Precalculus; Get ready for AP® Calculus; Get ready for AP® Statistics; Math: high school & college; ... Lesson 1: Introduction to logarithms. Intro to logarithms. Intro to Logarithms. Evaluate logarithms. Evaluating logarithms (advanced)
Algebra | Class 7 (Foundation) | Math | Khan Academy
Unit 8: Algebra. Our mission is to provide a free, world-class education to anyone, anywhere. Khan Academy is a 501 (c) (3) nonprofit organization. Donate or volunteer today!
Quadratic functions & equations | Algebra 1 | Math - Khan Academy
Explore. Our mission is to provide a free, world-class education to anyone, anywhere. Khan Academy is a 501 (c) (3) nonprofit organization. Donate or volunteer today! About. News.
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Variables in math are symbols, often letters, that represent different values in various situations. They help us understand and solve problems with changing values. For example, when calculating total earnings at a job with an hourly wage plus tips, a variable can represent the fluctuating tips, making it easier to determine total income.