And the answer is the way I just wrote it, it is not the exact same thing. It is the exact same thing everywhere, except at x equals negative one. This thing right over here is defined at x equals negative one. This thing right over here is not defined at x equals negative one. And g of x was not, was not, so g of x right over here, you don't get a good result when you try x equals negative one. And so in order for this to truly be the same thing as g of x, the same function, we have to say for x not equal to negative one. Now this is a simplified version of g of x.