So we could simplify and just say, well, g of x is equal to the square root of x plus five plus two. Now some of you might be feeling a little off here, and you would be correct. Your spider senses would be, say, is this, is this definitely the same thing as what we originally had before we canceled out the x plus ones? 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.