Condition One
x^2 = 0
sqrt(x^2) = sqrt(0)
x = 0
Condition Two
4x - 3 = 0
4x = 3
x = 3/4
Condition 3
5x - 1 = 0
5x = 1
x = 1/5 or
x = 0.2
A graph certainly helps with this problem. The places where this function crosses the x axis are the places which are the answers to your question. They are marked with a small dot.