Unit 6 Complex numbers Unit 7 Exponents and radicals Unit 8 Rational expressions and equations Unit 9 Relating algebra and geometry Unit 10 Polynomial arithmetic Unit 11 …

College Algebra Course challenge Test your knowledge of the skills in this course.

Explore complex numbers in College Algebra with Khan Academy's free lessons and practice to enhance your understanding of mathematics.

Linear equations and inequalities are the foundation of many advanced math topics, such as functions, systems, matrices, and calculus. Learn how to master them and unlock new …

The Algebra 1 course, often taught in the 9th grade, covers Linear equations, inequalities, functions, and graphs; Systems of equations and inequalities; Extension of the concept of a …

Once we know a handful of parent functions, we can transform those functions to build related functions. Geometry swoops in as we translate, reflect, and dilate the graphs, working back …

Algebra (all content) 20 units · 412 skills Unit 1 Introduction to algebra Unit 2 Solving basic equations & inequalities (one variable, linear) Unit 3 Linear equations, functions, & graphs

Want to know the path a soccer ball will take through the air? We need quadratic equations. Some equation-solving strategies, like taking the square root or factoring, work best with friendly …

Created by experts, Khan Academy’s library of trusted, standards-aligned practice and lessons covers math K-12 through early college, grammar, science, history, AP®, SAT®, and more.

Creativity break: How are math and creativity changing the world? Practice Solve exponential equations using exponent properties Get 3 of 4 questions to level up! Practice