1/(x+3)-2/(3-x)=1/x^2-9 解方程
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1/(x+3)-2/(3-x)=1/x^2-9 解方程
1/(x+3)-2/(3-x)=1/x^2-9 解方程
1/(x+3)-2/(3-x)=1/x^2-9 解方程
即1/(x+3)+2/(x-3)=1/(x+3)(x-3)
两边乘(x+3)(x-3)
x-3+2x+6=1
3x=-2
x=-2/3
经检验,x=-2/3是方程的解
请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360
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