Chapter 8

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Video Instruction

Rational Expressions

Section 8.1

Rational Expressions & Functions

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8.1.1 - Domain of Rational Expressions (8:48)

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8.1.2 - Simplifying Rational Expressions Part 1 (9:03)

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8.1.3 - Simplifying Rational Expressions Part 2 (10:24)

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8.1.4 - Multiplying Rational Expressions (11:22)

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8.1.5 - Dividing Rational Expressions Part 1 (6:29)

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8.1.6 - Dividing Rational Expressions Part 2 (4:25)

Section 8.2

Adding and Subtracting Rational Expressions

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8.2.1 - Addition and Subtraction of Rational Expressions with the same denominator (6:25)

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8.2.2 - Addition and Subtraction of Rational Expressions with different denominators (4:40)

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8.2.3 - Addition and Subtraction of Rational Expressions with denominators which are more involved (7:29)

Section 8.3

Complex Fractions

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8.3.1 - Simplifying with Method I (8:49)

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8.3.2 - Simplifying with Method II (12:55)

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8.3.3 - Examples using both methods (10:06)

Section 8.4

Solving Equations with Rational Expressions

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8.4.1 - Solving by Multiplying by the Lowest Common Denominator (6:11)

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8.4.2 - An Example of a more involved Rational
Equation (4:01)

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8.4.3 - Warning: Distinguish between Simplifying a Rational Expression and Solving an Equation Involving Rational Expressions (10:17)

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8.4.4 - Solving a Proportion (4:45)

Section 8.5

Formulas Involving Rational Expressions, Solving for One Variable in Terms of Others

$bullet$	8.5.1 - Formulas with Rational Expressions (9:43)
$bullet$	8.5.2 - Ratio Problems (7:47)

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8.5.3 - Distance Problems-Example 1 (4:10)

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8.5.4 - Distance Problems-Example 2 (9:12)

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8.5.5 - Work Problems-Example 1 (5:54)

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8.5.6 - Work Problems-Example 2 (4:19)

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8.5.7 - Work Problems-Example 3 (7:15)