论文部分内容阅读
因式分解是多项式的一种重要变形,是数学运算的一种基本技能,它的应用十分广泛,这部分内容知识点多,所用的公式复杂且灵活多变,易出现错误,现举例加以说明,以供同学们参考。一、因式分解不彻底例把16a4-b4分解因式错解:16a4-b4=(4a2+b2)(4a2-b2);简析:分解不彻底是分解因式时最容易犯的错误,应注意分解因式要分解到每个因式不能再分解为止,上面的解法所得因式还可继续分解。
Factorization is an important variant of polynomial, is a basic mathematical skills, its application is very extensive, this part of the knowledge of more points, the formula used is complex and flexible, prone to error, as an example to illustrate , For students to reference. First, the factorization is not complete Example of the factorization of the decomposition of 16a4-b4 misunderstood: 16a4-b4 = (4a2 + b2) (4a2-b2); Analysis: incomplete decomposition is the most likely to make mistakes when factoring, Should pay attention to factoring factor to be decomposed into each factor can not be decomposed so far, the above factoring derived factor can continue to be decomposed.