1. Note: one solution each!!
Warm-up: Place at top of today’s work on p. 605
Write given problem, then simplify
= 6
= 6
= 2
= 2
= 81
= 3
Note: one solution each!!

2. When solving an equation and applying the root on both sides, BOTH solutions must be considered.
The previous problems A-F already defined the root as the positive root (or principal root.)

4. = -8i TOO HARD to calculate by hand!!!
Finding the expression to the 3rd power is
somewhat reasonable by expansion…but
what about ???
TOO HARD to calculate by hand!!!

5. Notes: 9-8 Powers and Roots of Complex Numbers

7. 7. Find each principal root in a + bi form and round to the nearest hundredth.

8. Check evens: p.605