Which of the following is the product of the rational expression shown below? 5/2x-1 x 5/x

I am assuming that the expression you meant was the following, as it wasn't quite clear - ( ). If that is true, we can simply multiply the numerator and denominators to receive the simplified solution,

Multiplying 5 by 6, you would receive 30. Respectively ( 2x - 1 ) by x should be the following -

And thus, your solution should be 30 / 2x^2 - x. However, we aren't given the options so this answer may be unpredictable.