通分a/a^2+3a+2,a/a^2+2a+1,-1/3a+6

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/27 03:54:59
通分a/a^2+3a+2,a/a^2+2a+1,-1/3a+6通分a/a^2+3a+2,a/a^2+2a+1,-1/3a+6通分a/a^2+3a+2,a/a^2+2a+1,-1/3a+6a/a^2+3

通分a/a^2+3a+2,a/a^2+2a+1,-1/3a+6
通分a/a^2+3a+2,a/a^2+2a+1,-1/3a+6

通分a/a^2+3a+2,a/a^2+2a+1,-1/3a+6
a/a^2+3a+2=a/(a+1)(a+2)=3a(a+1)/3(a+1)^2(a+2)
a/a^2+2a+1=a/(a+1)^2=3a(a+2)/3(a+1)^2(a+2)
-1/3a+6= -1/3(a+2)= -(a+1)^2/3(a+1)^2(a+2)