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乘法公式应用逐行扫描

张兴涛

School Journal of Mathematics（2020）

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Abstract
乘法公式是初中数学中非常重要的公式之一,其应用十分广泛.解题时,若能根据题目的特点灵活运用乘法公式,就能达到迅速解题的目的. 一连续运用乘法公式 例1计算:(a-1)(1+a)(1+a2)(-1-a4). 解:原式=-(a2-1)(a2+1)(a4+1) =-(a4-1)(a4+1) =-(a8-1)=1-a8.
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