x^2+x-2 = ( x - 1)(2 + x)
x^2+7x+10 = (2 + x) (5 + x)
1/(x^2+x-2)-1/(x^2+7x+10) = 2
(5 + x) - ( x - 1) = 2( x - 1)((2 + x) (5 + x)
6 = 2( x - 1)((2 + x) (5 + x)
3 = ( x - 1)((2 + x) (5 + x)
x = -4.81691, x = -2.33761, x = 1.15452
只能死解(去分母)...没别的方法
内容全部来源于网络收集，如有侵权，请联系网站删除！
QQ：24596024