1. 6.8 Multiplying and Dividing Rational Expressions

2. multiplying
When rational expressions, we use the same rules as we do for multiplying rational numbers.
Theorem:
For all r, s, t, and u, t and u ≠ 0,

3. When we. rational expressions we can. by the
When we rational expressions we can by the and then use the first theorem on multiplication.
Theorem:
For all r, s, t, and, u, and s, t, and u ≠ 0
For either case, we can then all expression and common factors.
divide
multiply
reciprocal
factor
cancel

4. Simplify 1.

5. Simplify 2.

6. Simplify 3.

7. Simplify 4.

8. Sometimes you may need to find a
denominator and combine two expressions before simplifying.
common

9. Simplify 5.

10. Simplify 6.