Question

How do I solve? Or what is the answer for this?

Answer 1

Notice that the square root is accompanied with ^2 and can be simplified:

This works because 4x^4 = (2x^2)^2

`\sqrt{(2x^(2))^(2) * (256y^(8))^(2) }`

Remove the square root:

`2x^(2) (256y^(8) )`

Calculate the product:

`512x^(2) y^(8)`

This is your answer after simplification.