I'll just write 0.4 squared. And then we have 5 minus 4.6. That's 0.4, so plus 0.4 squared. 4.3 minus 4.6, that's negative 0.3. The negative goes away when you square it. So it's going to be plus 0.3 squared. And then finally, 5.5 minus 4.6 is going to be 0.9.