Warmups – simplify. Hint: Divide coefficients and use rules of exponents (subtract exponents when you divide). Factors cancel!

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Presentation transcript:

Warmups – simplify. Hint: Divide coefficients and use rules of exponents (subtract exponents when you divide). Factors cancel!

12-1 Simplifying Rational Expressions Objective: To simplify rational expressions and to identify values excluded from the domain. Standard 12.0

Excluded Values Excluded Values: values that make the denominator zero (because we cannot divide by zero). Always find the excluded values BEFORE you cancel anything out. Examples: State the excluded values

Example 1 Steps: 1. Factor top and bottom of fraction 2. Find excluded values (set each factor in the denominator equal to zero and solve) 3. Cancel out factors (things being multiplied together)

Example 2 Steps: 1. Factor top and bottom of fraction 2. Find excluded values (set each factor in the denominator equal to zero and solve) 3. Cancel out factors (things being multiplied together)

TOO FOR HOMEWORK a) find excluded values b) simplify

Homework Pg. 664 # 14 – 31 Work quietly, raise your hand with any questions

Warm ups Factor completely.

Speaker and Scribe Factor completely.

Speaker and Scribe Directions: Factor completely or write prime if not factorable.