Find any non-permissible values before simplifying expressions to avoid leaving out values. Be sure to identify non-permissible values prior to simplification. The document recommends doing odd-numbered problems 1-49 on page 158 for practice, with the option to do even problems if additional practice is desired.

1. 1

2. If you wait to find the non­permissables until after you
simplify, you will sometimes leave out values.
2

3. Remember to find the non­permissible values before you simplify.
3

4. p. 158 1­49 odd, 50
Odd
Do the even ones if you feel
you need the practice.
HI The extra p
ractice
4