1. Warm Up Finish your test If you already finished, begin looking at 9.1 – Review of Radicals You can start your homework after you have read the section

2. 9.1 Review of Radicals and Quadratic Equations

3. Simplify Radical Expressions: = = = 4

4. (3 )2)2 = 33 = 63 Try: = = 3 or 1. 2.

5. Quadratic Equations Solve for x: Method 1 (remember you will have ± in your answer) X 2 + 9 = 25 x 2 = 16 x = ± 4

6. Method 2: factoring X 2 + 9 = 25 X 2 - 16 = 0 (x-4)(x+4) = 0 (factor) X-4 = 0 or x+4=0 x = ± 4 Notice that with either method you get the same answer.

7. Try this one: X 2 = (3 ) 2 + ( ) 2

8. Simplify:

9. (10, 0) (0, 7) (0, 0) A B C Find AB AB =