So that's one situation. I'll do this in a different color. Or, and I'll do this one in a different color, three x to the fourth is less than zero and two x minus five is greater than zero. Actually, let me stay on the second case first. Are there any situations where three x to the fourth can be less than zero? You take any number, you take it to the fourth power, even if it's a negative, it's going to become a positive. So you can't get a negative expression right over here.