Is x negative?
1. x^3(1-x^2) < 0
2. (x^2 - 1) < 0
What is the best and short way to solve this or similar problem? (x-y/x+y) <1> 0?
1. x^3(1-x^2) < 0
2. (x^2 - 1) < 0
What is the best and short way to solve this or similar problem? (x-y/x+y) <1> 0?
