High School · Reasoning with Equations and Inequalities

CCSS.MATH.CONTENT.HSA.REI.A.2

Solve simple rational and radical equations in one variable, and give examples showing how extraneous solutions may arise.

Read this standard on the official Common Core site

Lessons that teach this standard

• Radical and Rational Equations, and Extraneous Solutions

  Why every solving step is a claim that follows from the one before, why squaring or clearing denominators can add false answers, and how to solve and check both kinds.

• Solving Exponential and Logarithmic Equations

  Solve equations with the unknown in an exponent or inside a logarithm: matching bases, taking logs of both sides, condensing logs, and rejecting extraneous solutions.