1. Solve by taking Square Roots
Ms. Holmes

2. Vocabulary
1. Solution: the value(s) of x that make an equation true; If the corresponding graph of the equation is shown, the solution(s) are the x values of the x-intercepts.
2. Square root: = y if y · y = x

3. A square root is written with the radical symbol…
The square of an integer is called a perfect square.

4. What do you think we should do?

5. What about this one??

6. Solving Quadratic Equations
Example: x² - 7 = 9 x² = 16 x = ± x = ± 4

7. How about this one…
x = 5

8. More Examples…
x2 – 1 = 49
x2 – 5 = 76
2x2 = 14
-3x² = -48

9. Vocabulary:
Inverse Operations: Two Operations are said to be Inverse to each other if one operation undoes the effect of the other operation.

10. Practice… x² + 6 = 70 6x² = 54 4m² = 48 -3x² = -300 Solve by taking

11. What about this one??

12. Now you try!

13. Solving Quadratic Equations with Square Roots Worksheet
- All odd numbers!!!
Closing