1. Quick Crisp Review Simplifying Square Roots √24√-72

2. You will be able to simplify complex numbers. Complex number: written in the form of a + bi where a and b are real numbers and i is the imaginary number. Page 195 2.

3. Remember Simplify each expression.

4. Adding and Subtracting Combine Like Terms

5. Multiplying Complex Numbers Similar to FOIL

6. Example 1 Write the quadratic equation in vertex form. f(x) = -x 2 + 6x – 8 f(x) = -(x – 3) 2 + 1

7. Example 2 Describe the right and left hand behavior y = 4x 4 + 7x Rises left and Rises Right

8. Example 3 Find the exact zeros of x 2 = 3x – 1

9. Example 4 Find the exact zeros of x 2 = 2x – 5

10. Example 5 Divide (2x 3 + 9x 2 + 14x + 5) ÷ (2x + 1) x 2 + 4x + 5

11. Example 6 Simplify

12. Exit What is a complex number and what are they used for? ACT: If x 2 + 6x + 8 = 4 + 10x, then x equals which of the following? A) -2B) -1C) 0D) 1E) 2