Question

What is the square root of 196y^10?

Answer 1

`sqrt(196y^10) = abs(14y^5)`

Explanation:

`sqrt(196y^10)`

`=sqrt(14^2xx(y^5)^2)`

`= sqrt(14^2)xxsqrt((y^5)^2)`

`= abs(14)xxabs(y^5)color(white)("XXX")`...we use absolute values to ensure principal roots only)

`= abs(14y^5)`