计算:2/x++1 - x-2/x²-1 ÷ x²-2x/x²-2x+1要详细过程!
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/25 03:51:07
![计算:2/x++1 - x-2/x²-1 ÷ x²-2x/x²-2x+1要详细过程!](/uploads/image/z/359045-53-5.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A2%2Fx%2B%2B1+-+x-2%2Fx%26%23178%3B-1+%C3%B7+x%26%23178%3B-2x%2Fx%26%23178%3B-2x%2B1%E8%A6%81%E8%AF%A6%E7%BB%86%E8%BF%87%E7%A8%8B%21)
计算:2/x++1 - x-2/x²-1 ÷ x²-2x/x²-2x+1要详细过程!
计算:2/x++1 - x-2/x²-1 ÷ x²-2x/x²-2x+1
要详细过程!
计算:2/x++1 - x-2/x²-1 ÷ x²-2x/x²-2x+1要详细过程!
=2/(x+1)-(x-2)/(x+1)(x-1)×(x-1)²/x(x-2)
=2/(x+1)-(x-1)/x(x+1)
=2x/x(x+1)-(x-1)/x(x+1)
=(2x-x+1)/x(x+1)
=1/x