4ху-х²×у³

To simplify the given expression, let's break it down step by step:

4ху - х² × у³

Step 1: Simplify the exponent: 4ху - х² × у × у × у

Step 2: Simplify the multiplication: 4ху - х²у³

And that's the simplified form of the expression: 4ху - х²у³.