This week we learnt the chapter Rational Expressions and Equations.
For each expression:
1. Factor the numerator and denominator.
2. Identify the non-permissible values of the variables.
3. Divide the numerator and denominator by their common factors.
Frist, we should factor it into
and we can cancel the x-2, but here we should cancel into -1 because they and opposite number,
we will get , but don’t forget the non-permissible, here the x can’t equal to 2 and 3, because we can’t divide by zero.