can anyone simplify this expression?

Question

(4the square root of x^3 *4the square root of x^5)* the exponent -2

Answer 1

Firstly

4the square root of x^3 *4the square root of x^5

= 16 square root of x^8 (as inside square root of during multiplication the powers are added)

= 16 square root of x^4

Now this whole square right..?

= (16Vx^4)^2...?

Then it becomes 256 x^4

that is the answer.