This gives , which is correct.
Dividing both the numerator and the denominator by , we have
now this gives me 2.
P.S. I tested the values on a calculator.
first it can be written as
now you cannot take x out since it is a negative number
this question can be done in the following way
since x is negative , convert it to a positive number by substituting y= -x or x= -y
therefore functon becomes
thus answer is infinity not minus infinity......