So minus negative one squared, negative one squared over two plus negative one. So negative one squared is just one. So it's 1 1 2 plus negative one, 1 1 2 plus negative one is, or 1 1 2 minus one is negative 1 1 2. So all of that is negative 1 1 2. But then we're subtracting negative 1 1 2. Zero minus negative 1 1 2 is going to be equal to positive 1 1 2. So this is going to be equal to positive 1 1 2.