提公因式法分解因式是因式分解的基础．把一个多项式分解因式，首先应考虑提取公因式．那么，怎样运用提公因式法分解因式呢？一、正确地确定多项式中各项的公因式是运用提公因式法分解因式的关键例１试确定下列各组整式的公团式：分析一组含积形式的整式，它们的公因式应符合 The factoring factor of factoring is the basis of factorization. To factorize a polynomial, first consider the extraction of the common factor. Then, how do we use factorial methods to factorize the factors? I. Correctly determining the common factors of each item in a polynomial is a key example of using factorial methods to factorize the factors. 1. Try to determine the following public formulas for the entire group: Analyze a set of integral formulas containing product, their public Factor should meet