# simplifying and multiplying rational expressions

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## Presentation Description

Demonstrates how to simplify rational expressions.

## Presentation Transcript

### Simplifying and Multiplying Rational Expressions:

Simplifying and Multiplying Rational Expressions Lesson 9.3

Warm-up: Factor:

### Simplifying Rational Expressions:

Simplifying Rational Expressions Simplifying Rational Expressions Let a, b, and c be nonzero real numbers or variable expressions. Divide out common factor c.

### Examples:

Examples Simplify: Already simplified

### Examples:

Examples Simplify the expression below which gives the ratio of the surface area to the volume of a cylindrical canister with radius r and height h.

### Examples:

Examples Simplify: Already simplified

### Multiplying Rational Expressions:

Multiplying Rational Expressions Multiplying Rational Expressions Let a, b, and c be nonzero real numbers or variable expressions. To multiply, multiply numerators and denominators.

### Examples:

Examples Multiply:

### Examples:

Examples Multiply: Always factor 1 st , if possible.

### Examples:

Examples Multiply: Always factor 1 st , if possible.

### Assignment:

Assignment pp. 483-485 22-25 27-54 by 3s 61 & 62