Rational algebraic expressions

Mathematics 8

1. RATIONAL ALGEBRAIC EXPRESSIONS MODULE 6

2. It is a ratio of two polynomials with a denominator not equal to zero. It is in the form , where   What is a Rational Algebraic Expression?

3.   EXAMPLES OF RATIONAL EXPRESSIONS          

4.   Rational Expression is defined for all real numbers for which the denominator is not equal to zero. This rational expression is defined for all real numbers except since it will make the denominator equal to zero.  

5.   This rational expression is defined for all real numbers except since the denominator is equal to zero.             The expression is defined for all real numbers except 2 and -2.

6. SIMPLIFYING RATIONAL EXPRESSIONS

7. Factor both the numerator and denominator of the fraction and then cancel the common factors. How to simplify Rational E xpressions?      

8.   CANCELLATION LAWS     Example 1: Example 2:

9.   CANCELLATION LAWS Example 1:     Example 2:  

10.   CANCELLATION LAWS Example 1:         Example 2:

11.   CANCELLATION LAWS Example 1:         Example 2:

12.   CANCELLATION LAWS Example 1:         Example 2:

13.   CANCELLATION LAWS Example 1:         Example 2:

14. Examples when not to cancel terms. Example 1:     Example 2: Example 3:   Example 4:  

15. THANK YOU!