It's going to be 4 times a positive number. It might be like 2.999, but this is still going to be positive. This is going to be positive when x is approaching 3. Then this is going to be, well, if x is 3, this is 0. If x is a little bit less than 3, if it's like 2.9999, this number is going to be less than 81. This is also going to be positive. Of course, the denominator is always positive.