计算 x²-6x+9/9-x²除以2x-6/x²+3x
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 07:58:42
![计算 x²-6x+9/9-x²除以2x-6/x²+3x](/uploads/image/z/469456-16-6.jpg?t=%E8%AE%A1%E7%AE%97+x%26%23178%3B-6x%2B9%2F9-x%26%23178%3B%E9%99%A4%E4%BB%A52x-6%2Fx%26%23178%3B%2B3x)
计算 x²-6x+9/9-x²除以2x-6/x²+3x
计算 x²-6x+9/9-x²除以2x-6/x²+3x
计算 x²-6x+9/9-x²除以2x-6/x²+3x
原式=-(x-3)²/(x+3)(x-3)×x(x+3)/2(x-3)
=-(x-3)/(x+3)×x(x+3)/2(x-3)
=-x/2
x²-6x+9/9-x²除以2x-6/x²+3x
=(x-3)²/(3-x)(3+x)×[x(x+3)/2(x-3)]
=-x/2