10-2 Multiplying Rational Expressions

1
10-2 Multiplying Rational Expressions

• 9P12Simplify rational expressions

2
To Multiply Rational Expressions

• Factor each part of fraction (if possible)
• Rewrite as one fraction (in factored form)
• Cancel common factors
• Write answer/ identify unacceptable denominators

3
To determine unacceptable replacements of x
(or any denominator)

• Find any value which makes the denominator 0
• Ex
• x ? 3 or x ? -2

4
Example1
2
5
Example 2
1
1
x ? -2
6
Example 3
1
x ? 2
7
Assignment

• Day 1 10-2/437-438/ 2-34 e, 63-65
• (on 65 use pt slope formula (7-6))
• Remember to identify unacceptable denominators!
• Day 2 10-2/437-438/35-47, 53-57, 61
• Remember to identify unacceptable denominators!