The square root of 196 in math symbology looks like this:
So what does it mean?
The square root operation is the opposite of squaring something. For instance, 3 squared is 9 and the square root of 9 is 3:
And if I write something like this:
#sqrt(3^2)# that is both operations at once, the square and the square root cancel each other out and the answer is 3:
Back to #sqrt196#. Is there a number we can square to arrive at 196? The answer is yes - 14. There are two ways to figure this out - one is to simply remember it (I used this way because I'm a math geek and I remember stuff like this...) and the other is to work it out by breaking down the 196 into its factors. Like this:
And now that we know that #sqrt(196)=sqrt(14^2)#, we can now say: