Hello SVXX1. Note that , which is always positive. So you just need to consider the sign of the denominator, , in the each of the ranges .

2.

Consider the values of which make each term zero; these are , and look at the sign of the expression as moves along the number line from left to right through these values; in other words in the ranges

For instance, when , you get . So isnotpart of the solution set.

Grandad