2x²-2/x/-35>0
2|x|²-2|x|-35>0
2(|x|-1/2)²-71/2>0
2(|x|-1/2)²>71/2
(|x|-1/2)²>71/4
|x|-1/2>√71/2
|x|>(1+√71)/2
或
|x|(1+√71)/2
得
x>(1+√71)/2
或
x
2x²-2/x/-35>0
2|x|²-2|x|-35>0
2(|x|-1/2)²-71/2>0
2(|x|-1/2)²>71/2
(|x|-1/2)²>71/4
|x|-1/2>√71/2
|x|>(1+√71)/2
或
|x|(1+√71)/2
得
x>(1+√71)/2
或
x