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### Course: Algebra 2 > Unit 10

Lesson 2: Square-root equations- Intro to square-root equations & extraneous solutions
- Square-root equations intro
- Intro to solving square-root equations
- Square-root equations intro
- Solving square-root equations
- Solving square-root equations: one solution
- Solving square-root equations: two solutions
- Solving square-root equations: no solution
- Square-root equations

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# Square-root equations intro

Sal gives an example of how an extraneous solution arises when solving 2x-1=√(8-x).

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