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## Warm up: Factor & List which process(es) you used.

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**Homework Questions?**• Pg. 664 # 14 – 31**12-1 Simplifying Rational Expressions**Objective: To simplify rational expressions. 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**Steps**• Factor top and bottom of fraction separately • GCF • Binomial: Difference of 2 squares • Trinomial: X-Box, Perfect Square trinomial • Find excluded values (denominator 0) • Cancel out factors (what top and bottom have in common)**Example 1**Excluded values:**Homework**• Simplifying Fractions worksheet**Steps**• Factor top and bottom of fraction separately • GCF • Binomial: Difference of 2 squares • Trinomial: X-Box, Perfect Square trinomial • Find excluded values (denominator 0) • Cancel out factors (what top and bottom have in common)**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