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拆项,是一种有趣的解题方法.它是我们有意识地把代数式中的某项拆成两项或多项的和,以此,来为解题找到简捷的途径.
Demolition of items is an interesting method of solving problems. It is a method of consciously splitting an item in an algebraic form into two or more items. In this way, we can find a simple way to solve problems.