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

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Quick Crisp Review Simplifying Square Roots √24√-72

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

Remember Simplify each expression.

Adding and Subtracting Combine Like Terms

Multiplying Complex Numbers Similar to FOIL

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

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

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

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

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

Example 6 Simplify

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