1 / 24

Section: 9-4 SOL: AII. 1a

Rational Expressions. Objective: I will simplify rational expressions using multiplication and division. Section: 9-4 SOL: AII. 1a. Rational Expressions. Remember a RATIONAL EXPRESSION can be expressed as a quotient of two polynomials. Remember, denominators can not = 0.

ejuan
Télécharger la présentation

Section: 9-4 SOL: AII. 1a

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Rational Expressions Objective: I will simplify rational expressions using multiplication and division Section: 9-4 SOL: AII. 1a

  2. Rational Expressions Remember a RATIONAL EXPRESSION can be expressed as a quotient of two polynomials.

  3. Remember, denominators can not = 0.

  4. Simplifying Rational Expressions

  5. Step 1: Factor the numerator and the denominator completely.

  6. Step 2: Divide the numerator and denominator by the common factor. What is the common factor?

  7. 1 1 Step 3: Multiply to get your answer.

  8. How do I find the values that make an expression undefined? Completely factor the ___________ denominator.

  9. What value of x would make the denominator 0? The expression is _____________at the values of x that will make the ___________ equal to 0.

  10. The expression is undefined when: a= __, __, and __ and b = __.

  11. Lets go through another example.

  12. Let’s try two more:

  13. Do you remember how to multiply fractions? First you multiply the numerators then multiply the denominators.

  14. The same method can be used to multiply rational expressions.

  15. Step #1: Factor all numerators and all denominators.

  16. Step #2: Divide the numerator and denominator by the common factors.

  17. Step #3: Multiply the numerator and the denominator. Remember how to divide fractions?

  18. 1 5 1 4 Dividing Fractions Multiply by the reciprocal of the divisor.

  19. Dividing rational expressions uses the same procedure. Ex: Divide:

  20. Next

  21. Let’s try one more:

  22. Now try these on your own.

More Related