When using regex to dynamically extract numbers before text, you can use the following regular expression pattern: ([0-9]+)\D+. This pattern will match one or more digits followed by one or more non-digit characters (such as whitespace, punctuation, or letters).To use this pattern in code, you can use a regex function or method in your programming language of choice, such as re.findall() in Python, Regex.Match() in C#, or String.prototype.match() in JavaScript.