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把具有特殊形式的多项式相乘的式子及其结果写成公式的形式,就是乘法公式。乘法公式应用十分广泛,是初中代数的重点内容之一。学好乘法公式要弄清以下几个问题:
The formulas that multiply the polynomials with special forms and their results in the form of formulas are multiplication formulas. The multiplication formula is widely used and is one of the key contents of junior high school algebra. Learn the multiplication formula to understand the following questions: