Just about everyone here writes a power like this: 4x^2 which means 4x squared. If you have a Windows computer, you could hold down the "ALT" key and at the same time, type in the number 0178 and you will get this ² So then you could type 4x² just as it should appear.
A turtle is crossing the road when he’s mugged by two snails. When the police show up, they ask him what happened. The shaken turtle replies, “I don’t know. It all happened so fast.”
