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# Solve by Squaring Both Sides

Solve by Squaring Both Sides . Ms. Holmes Day 9 . Solve Radical Equations. 1) Extraneous Solutions – an extraneous solution represents a solution that emerges from the process of solving the problem but is not valid solution to the original equation.

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## Solve by Squaring Both Sides

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1. Solve by Squaring Both Sides Ms. Holmes Day 9

2. Solve Radical Equations 1) Extraneous Solutions – an extraneous solution represents a solution that emerges from the process of solving the problem but is not valid solution to the original equation. 2) Radical Equation - an equation where the variable is underneath the radical sign.

3. What do you see that is different in these two equations?? Do we get the same answer for both of these equations?

4. What’s the first step?

5. Example 1…Now you try…

6. Example 2…

7. Example 3…

8. Example 4…

9. Example 5…

10. Example 6…

11. Work time!!! • = 10 • = 3 • 6 = • = 9 • 5 = • 2 = • = 1 • 1 =

12. Remember to check for extraneous solutions!

13. Example 8… Remember to check for extraneous solutions!!

14. Example 9 … Remember to check for extraneous solutions!!

15. Example 10… Remember to check for extraneous solutions!!

16. Practice

17. Show me what you know 

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