Home > CCA2 > Chapter Ch3 > Lesson 3.2.3 > Problem 3-91
3-91.
For each rational expression below, state any values of the variables that would make the denominator zero. Then complete each part.
Use the fact that
to rewrite . Then look for “ones” and simplify. Does anything factor out?
Use the strategy you used in part (a) to simplify the expression
. Does anything factor out?