作业帮[(2x＋y)²-y(y-4x)]÷[-1／4x]
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/11 05:23:03
![[(2x＋y)²-y(y-4x)]÷[-1／4x]](/uploads/image/z/1344991-31-1.jpg?t=%5B%282x%EF%BC%8By%29%26%23178%3B-y%28y-4x%29%5D%C3%B7%5B-1%EF%BC%8F4x%5D)
[(2x＋y)²-y(y-4x)]÷[-1／4x]
[(2x＋y)²-y(y-4x)]÷[-1／4x]
[(2x＋y)²-y(y-4x)]÷[-1／4x]
=(4X²+4XY+Y²-Y²+4XY)*(-4X)
=(4X²+8XY)*(-4X)
=-16X³-32X²Y
[(2x＋y)²-y(y-4x)]÷[-1／4x]
=-4x（4x²+4xy+y²-y²+4xy）
=-4x（4x²+8xy）
=-16x²（x+2y）
=(4x2+4xy+y2-y2+4xy)/(-1/4x)
=(4x2+8xy)/(-1/4x)
=-x-2y