Math 4

1.

Please post a 100-250 word response to the following discussion question by clicking on Reply.  Your response is due by Tuesday.

When is a rational expression undefined?  Describe how to find the values at which a rational expression is undefined. 

Provide an example of a rational expression for your classmates.  Ask them to identify where the rational expression is undefined.

2. show work

                           2/(10-x)

What would the value of x need to be in order for the expression to be deemed undefined?

3. show work

x^2+5  
 x+2

4.

Please post a 100-250 word response to the following discussion question by clicking on Reply.  Your response is due by Thursday.

What are the five steps in solving a rational equation?  Why is the last step of solving a rational equation important?  Provide a rational equation for your classmates to solve.

5. show work

10    +   4   =  5   

 x(x-2)      x     x-2

6. show work.

X-3/x^4-10x