[Gambet]

The root of a number is the same thing as saying that same number to the power of the exponent it's being multipled to inside the root over the degree of the root.


How that works?


Well, when you rationalize a root, if the root has no outside degree showing, then it's automatically a square root (degree of 2). If you a number inside that square root that does not have an exponent (i.e. doesn't have a power), then the power is automatically 1, since any number to the power of 1 is that same number.

So, by knowing that, you can apply what I said earlier to realize that, for example, the square root of 2 is the same thing as saying 2 to the power of 1/2, or 0.5 (decimal form).

To write the power of a number, you use this symbol: ^

So, it would be written as:

2^0.5 or 2^1/2