1. Simplify the expression
Warm-up
Simplify the expression

2. How can we use our factoring skills to multiply rational expressions?
Math I
UNIT QUESTION: How do we perform the four basic operations on rational expressions?
Standard: MM1A2
Today’s Question:
How can we use our factoring skills to multiply rational expressions?
Standard: MM1A2e

3. How do you multiply fractions?

4. How do you multiply fractions?

5. 3.9 Multiply and Divide Rational Expressions

6. Multiplying Rationals
Protect binomials (and higher) with parenthesis and FACTOR
Simplify out factors on TOP with common factors on BOTTOM
Then, multiply across the top and across the bottom
Simplify again, if possible

7. From the notes: Write the product in simplest form.

11. What’s the area of the rectangle in terms of x and in simplest form?
Geometry Link
What’s the area of the rectangle in terms of x and in simplest form?

12. Dividing Rational Expressions

13. Dividing Rationals First ratio stays the same
Change the division sign to multiplication
Flip the 2nd ratio
Repeat the same steps you did for multiplication
Simplify again, if possible

14. From the notes:
Stay, change, flip

15. Write the quotient in simplest form.
Stay, change, flip

16. Example from the notes
Stay, change, flip

17. Example from the notes
Stay, change, flip