To factorize the expression \(4xy - 8xy\), follow these steps:

1. **Identify the common factor:**  
   Both terms, \(4xy\) and \(8xy\), have a common factor of \(4xy\).

2. **Factor out the common factor:**  
   \(4xy - 8xy = 4xy(1 - 2)\)

3. **Simplify:**  
   \(4xy(1 - 2) = 4xy(-1)\)

So, the factorized form of \(4xy - 8xy\) is \(-4xy\).

Would you like further details or have any questions? Here are some related problems to try:

1. Factorize \(6ab - 12ab\).
2. Factorize \(10x^2y - 15xy\).
3. Factorize \(3x - 9x\).
4. Factorize \(14xy - 7xy\).
5. Factorize \(20xyz - 5xyz\).

**Tip:** When factorizing, always start by identifying the greatest common factor (GCF) of the terms.

Learn how to factorize 4xy - 8xy with a detailed step-by-step guide. This problem covers key algebraic concepts, including factorization and identifying common factors. Suitable for students in Grades 7-9.

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