完全平方公式是进行代数运算与变形的重要的知识基础,是因式分解的重要公式方法。该知识点的重点是对完全平方公式的熟记及应用。难点是对公式特征的理解(如对公式中积的一次项系数的理解)。在初中八年级的代数学习中,完全平方式的运用很广泛,往往能帮助同学们解决很多运算上的困难,因此学生能巧妙地掌握完全平方式的运用至关重要。 The perfect square formula is an important knowledge base for algebraic operation and deformation, and is an important formula method of factorization. The point of this knowledge point is the memorization and application of the complete square formula. The difficulty is the comprehension of the characteristic of the formula (such as the understanding of the first-order coefficient of the product in the formula). In the eighth grade of junior high school algebra, the use of complete flat style is very wide, often to help students solve many operational difficulties, so students skillfully master the completely flat type of application is essential.