计算:[(x+y)³ - (x+y)²]÷(x+y)²=_____
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![计算:[(x+y)³ - (x+y)²]÷(x+y)²=_____](/uploads/image/z/1730831-23-1.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A%5B%EF%BC%88x%2By%EF%BC%89%26%23179%3B+-+%EF%BC%88x%2By%EF%BC%89%26%23178%3B%5D%C3%B7%EF%BC%88x%2By%EF%BC%89%26%23178%3B%3D_____)
计算:[(x+y)³ - (x+y)²]÷(x+y)²=_____
计算:[(x+y)³ - (x+y)²]÷(x+y)²=_____
计算:[(x+y)³ - (x+y)²]÷(x+y)²=_____
[(x+y)³ - (x+y)²]÷(x+y)²
=(x+y)³ ÷(x+y)²- (x+y)²÷(x+y)²
=(x+y)-1
=x+y-1
x+y-1
[(x+y)³ - (x+y)²]÷(x+y)²=x+y-1