Hello,
first we have to descompose the number:
128 | 2
64 | 2
32 | 2
16 | 2
8 | 2
4 | 2
2 | 2
1
So:
Therefore:
You must know these properties:
![\sqrt{a*b} = \sqrt{a} * \sqrt{b}\\ \\ \sqrt[b]{x^a}= x^{ \frac{a}{b}}](https://tex.z-dn.net/?f=%20%5Csqrt%7Ba%2Ab%7D%20%3D%20%5Csqrt%7Ba%7D%20%2A%20%5Csqrt%7Bb%7D%5C%5C%20%5C%5C%20%5Csqrt%5Bb%5D%7Bx%5Ea%7D%3D%20x%5E%7B%20%5Cfrac%7Ba%7D%7Bb%7D%7D%20)
then:
first we have to descompose the number:
128 | 2
64 | 2
32 | 2
16 | 2
8 | 2
4 | 2
2 | 2
1
So:
Therefore:
You must know these properties:
then:
