Our restriction here is that the denominator of a fraction can never
be equal to 0. So to find our domain, we want to set the denominator
"not equal" to 0 to restrict those values.

***"Solve" for x**

***"Solve" for x**

***Divide out the common factors **

**of (2 x + 1), (2x - 1), and (3x + 2)**

***Factor the num. and den.**

***Div. out the common factors of **

**(2 x + 3), (x - 4), and (2x + 1)**

***Factor the num. and den.**

***Div. out the common factors of **

**( b - 4), (b - 4), (b - 5), and (b - 3)**

Last revised on July 17, 2011 by Kim Seward.

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