What is 5x cubed over x squared multiplied by 3x to the fourth power over 6x?

Is this what you are saying?

Online "^" is used to indicate an exponent, e.g., x^2 = x squared.

5x^3/x^2 * 3x^4/6x

Or is it this?

(5x)^3/x^2 * (3x)^4/6x