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Lesson 7-6 Solving Radical Equations

Learn how to solve radical equations and solve word problems involving radicals. This includes eliminating radicals in equations by squaring or cubing both sides, simplifying, and checking for extraneous roots. Examples and assignments provided.

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Lesson 7-6 Solving Radical Equations

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  1. Lesson 7-6Solving Radical Equations Objectives: Students will: Solve radical equations Solve word problems involving radicals

  2. Eliminative Radicals in Equations → square both sides → cube both sides … • Steps • Isolate the radical (treat as variable) • Square (cube…) both sides • Simplify • Check for extraneousroots (don’t work)

  3. Example 1: Solve ( )2 ( )2 Check:

  4. Example 2: Solve yes No: extraneous

  5. Example 3: Solve

  6. Ex 4:

  7. Ex 5:

  8. Assignment • 7-6/318-319/4-40 m4, 41,42,54-57

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