1. Squares and Square Roots

2. When we square a number, we
multiply it by itself w2= (w)(w)
The inverse of squaring a
number is to take its square root

3. All positive numbers have
Square Roots.
When the sign is used, it
indicates only the positive or
principle root.

4. Ex #1: Evaluate

5. Ex #2: Evaluate

6. Ex #2: Evaluate

7. Ex #3: Evaluate

8. Ex #3: Evaluate

9. Ex #4: Evaluate

10. Ex #4: Evaluate

11. Ex #5: Evaluate

12. Ex #3: Evaluate

13. Ex #6: Evaluate

14. Ex #3: Evaluate

15. Both give a value of ____
Evaluate
AND (-3)2
Both give a value of ____

16. Evaluate
AND (-3)2
Both give a value of +9

17. Ex #5: Evaluate
If x2 = 36

18. Ex #5: Evaluate
If x2 = 36
x = 6

19. Ex #5: Evaluate
If x2 = 36
x = 6
Note: (+6)2 = 36
&
(-6)2 = 36

20. Practice Questions P91 #18 P101 #4
Puzzles x 2 (What happens…/ What was…)
Correct h. out from last day
(x)&()powers; word problems etc