通分:1/﹙x²-x﹚,1/﹙x²+x﹚,1/﹙x+1﹚² 约分: ﹙m³+2m²+m﹚/﹙m²-1﹚
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 13:08:18
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通分:1/﹙x²-x﹚,1/﹙x²+x﹚,1/﹙x+1﹚² 约分: ﹙m³+2m²+m﹚/﹙m²-1﹚
通分:1/﹙x²-x﹚,1/﹙x²+x﹚,1/﹙x+1﹚² 约分: ﹙m³+2m²+m﹚/﹙m²-1﹚
通分:1/﹙x²-x﹚,1/﹙x²+x﹚,1/﹙x+1﹚² 约分: ﹙m³+2m²+m﹚/﹙m²-1﹚
通分:
1/﹙x²-x﹚=(x+1)^2/x(x-1)(x+1)^2,
1/﹙x²+x﹚=(x-1)(x+1)/x(x-1)(x+1)^2
1/﹙x+1﹚² =x(x-1)/x(x-1)(x+1)^2
约分:﹙m³+2m²+m﹚/﹙m²-1﹚=m(m+1)^2/(m+1)(m-1)=m(m+1)/(m-1)