R.5 Rational Expressions (p. 37)

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R.5 Rational Expressions (p. 37)
Warm-up Simplify

• Determine the domain
• Simplify rational expressions
• Multiply, divide, add or subtract
• Simplify complex rational expressions

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A. Find the domain

• 1.) factor the denominator
• 2.) What cant x be?
• 3.) Write interval notation

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B. Simplify

• 1.) factor everything
• 2.) divide out

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C. Multiplying rational expressions

• 1.) factor everything
• 2.) divide out
• 3.) if anything is left multiply

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D. Dividing rational expressions

• 1.) multiply by the reciprocal
• 2.) factor everything
• 3.) divide out.

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E. Adding and subtracting

• 1.) factor
• 2.) find LCD
• 3.) Simplify

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F. Complex expressions