3. What are the square roots of 36?
6 and -6
What is the principal square root of 36?
6

6. Simplify
Simplify

7. Simplify

8. Answer:  3x4
Answer: 2xy2
Answer: not a real number
Simplify.
a.
b.
c.

9. When you find an even root of an even power
and the result is an odd power, you must take the
absolute value of the result to ensure that the
answer is nonnegative.
positive positive

10. Simplify
Simplify
Since the index is odd, you do not need absolute value.

11. Answer:
Simplify.
Answer:
Answer: 4 |x3| y4