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12.7 Radical Equations

12.7 Radical Equations. CORD Math Mrs. Spitz Spring 2007. Objectives. Solve radical equations. Assignment. pg. 503 #5-35 all. Ex. 1: Solve. Ex. 1: Solve. CHECK YOUR WORK!. Ex. 2: #30. Ex. 2: #30 . Ex. 3: #34 . Ex. 3: #34 . Ex. 4: #28 . Ex. 4: #28 . Ex. 5 – Geometric Mean .

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12.7 Radical Equations

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  1. 12.7 Radical Equations CORD Math Mrs. Spitz Spring 2007

  2. Objectives • Solve radical equations Assignment • pg. 503 #5-35 all

  3. Ex. 1: Solve

  4. Ex. 1: Solve

  5. CHECK YOUR WORK!

  6. Ex. 2: #30

  7. Ex. 2: #30

  8. Ex. 3: #34

  9. Ex. 3: #34

  10. Ex. 4: #28

  11. Ex. 4: #28

  12. Ex. 5 – Geometric Mean • The geometric mean of two numbers is a square root of their product. Thus, the geometric mean of numbers a and b is ±√ab. Find two numbers that have a geometric mean of 6 given that one number is 5 more than the other.

  13. Explore, Plan Let x = the lesser number, then let x + 5 = the greater number.

  14. Ex. 5 -- SOLVE

  15. Ex. 5 -- SOLVE If x = -9, then x +5 = -4, then x + 5 = 9. Thus the number s are -9 and -4, or 4 and 9.

  16. CHECK YOUR WORK!!!

  17. Reminders • 12.8 and the Chapter 12 review on your return the week we come back from Spring Break. Test will be on Thursday when we return; so you will also have a binder grade on that date. • Testing for MAPS will take place within the next 3 weeks.

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