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Domain & Simplifying by Factoring. Objectives: Be able to find the domain of rational and radical expressions. Be able to use GCF to factor expressions. TS: Making Decisions After Reflection and Review Warm-Up: Factor the following 10x 2 – 5x 23x 3 y – 2x 2 y 4.
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Domain & Simplifying by Factoring Objectives: Be able to find the domain of rational and radical expressions. Be able to use GCF to factor expressions. TS: Making Decisions After Reflection and Review Warm-Up: Factor the following 10x2 – 5x 23x3y – 2x2y4
So in order to factor out a GCF all you need to do is… • Factor out the greatest numerical value • Identify all common variables or expressions • Factor out the smaller variable amount by subtracting the smaller power from the larger
Finding the Domain of a Function The domain of a function is the set of x-values when plugged into a function give a real number. Example: For the domain is [2, ∞) For the domain is (-∞, 0) U (0, ∞)