x(x+1)²-x(x²-3)-2(x+1)(x-1)=20

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/05 23:42:23
x(x+1)²-x(x²-3)-2(x+1)(x-1)=20

x(x+1)²-x(x²-3)-2(x+1)(x-1)=20
x(x+1)²-x(x²-3)-2(x+1)(x-1)=20

x(x+1)²-x(x²-3)-2(x+1)(x-1)=20