Square root of a number
This article continues from a previous article. It will be a good idea to read through it before attempting this. The square root of a number x, is the number that when multiplied by itself is equal to x. The general idea is where;
…or…
…this is because;
There are lots of examples of square root of a number that we can look at;
Note that;
Also note that it is not possible to square root a negative number. For example there is no number when multiplied by itself will equal to -9, so;
