Multiply ans simplify.
3x^3/5v^3 * 25v^5/9x
Now, take a look at the expresion! Is it:[3x^3] / [5v^3 * 25v^5/9x] this one? or is it this one:[3x^3/5v^3] * [25v^5/9x]. Or [3x^3]/[5v^3] * [25v^5] / 9x, or what? I await your instructions, Sir!!!.