Explanation:
The square root of a number as any number that, when squared, makes it.
So, the square root of four is 2, because 2x2 or 2 squared is 4.
We have part of our equation.
Now, find the square root of 5 using the same method.
The square root of 5 is about 2.23.
Now, complete the equation. Right and solve for the answer.
2+2.23=4.23.