The expression is .
Simplify the expression.
\ (Factors)
(Divide out the common factors)
.
Simplified expression is .
Find excluded value for .
(The denominator can be zero) \ \
(Rewrite the equation) \ \
(Group of the comon factors) \ \
(Take out common terms) \ \
or
(Zero product property) \ \
or
(Simplify)
Therefore, the value of can not be equal
.
The excluded values are or
.
The simplified expression is .
The excluded values are or
.