Let's get our calculator out. So 4 minus 4.6 squared, that's negative 0.6 squared. Negative 0.6 squared is going to be the exact same thing as 0.6 squared. So let me write that as 0.6 squared plus 4.2 minus 4.6 is negative 0.4. But when we square it, the negative is going to disappear. So it's going to be plus 0.4. I'll just write 0.4 squared.