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7.6 Solving Radical Equations

Learn how to solve radical equations and avoid extraneous solutions by checking your answers. Practice problems included.

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7.6 Solving Radical Equations

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  1. 7.6 Solving Radical Equations p.437

  2. Ex: Solve for x. Don’t forget to check your solutions!! ** ** Use this idea to solve the radical equations.

  3. Ex: Solve for y. Don’t forget to check your solutions!!

  4. Ex: Solve. Don’t forget to check your solutions!!

  5. Ex: Solve. Don’t forget to check your solutions!!

  6. Ex: Solve. Only use the positive answers when checking solutions. Factor this to solve! Don’t forget to check your solutions!! Solution

  7. So, why didn’t one of the solutions work? • The solution that did not work is called an extraneous solution. • An extraneous solution is a false solution. • This is the reason why you MUST check all solutions!!

  8. Assignment Classwork: txbook page 441 problems 5 – 15. Homework: page 441 problems 17 – 53 1st col

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