
Example  1: Find the square root of 81x^{2}. Solution: Given that 81x^{2}, we can write this as 9x.9x i.e. (9x)^{2} Therefore, Ö(9x)^{2} = 9x
Example  2:
More examples:
Directions: Solve the following problems and choose the positive root. Also write at least 10 examples of your own. 