Find the set of values of x for which:
I rearranged it to form:
Therefore critical points of the denominator are x = 2, 3.
It says that the numerator is always positive, could you explain why exactly this is, or is this just something that you "know".
I am not sure then how to work out a set of values for x, they have x<2 and x>3 in the book.
Thanks in advance for the help :)