Main content
Learn
Rational equations introEquations with rational expressionsEquations with rational expressions (example 2)Finding inverses of rational functions
Practice
Rational equations introGet 3 of 4 questions to level up!
Rational equationsGet 3 of 4 questions to level up!
Find inverses of rational functionsGet 3 of 4 questions to level up!
Learn
Intro to square-root equations & extraneous solutionsSquare-root equations introIntro to solving square-root equationsSolving square-root equationsSolving square-root equations: one solutionSolving square-root equations: two solutionsSolving square-root equations: no solution
Practice
Square-root equations introGet 3 of 4 questions to level up!
Square-root equationsGet 3 of 4 questions to level up!
Learn
Extraneous solutionsEquation that has a specific extraneous solutionExtraneous solutions of radical equations
Practice
Extraneous solutions of equationsGet 3 of 4 questions to level up!
Learn
Solving cube-root equations
Learn
Quadratic systems: a line and a parabolaQuadratic systems: a line and a circleQuadratic system with no solutions
Practice
Quadratic systemsGet 3 of 4 questions to level up!
Learn
Solving equations by graphingSolving equations by graphing: introSolving equations by graphing: graphing calculatorSolving equations by graphing: word problems
Practice
Solving equations graphically: introGet 3 of 4 questions to level up!

About this unit

In Mathematics I and II, students solves linear and quadratic equations, and learned how the two processes are based on the same logical principles. In this unit, we extend these processes to solve a greater variety of equations, like rational and radical equations. We learn that we may sometimes get extraneous solutions. We also solve systems that include quadratic equations, and learn how we can use graphs to estimate a solution for any kind of equation!