Hello, classmate ~, when I was in Baidu, I accidentally saw your question and remembered the situation of brushing math problems in the postgraduate entrance examination last year. I was very moved, so I specially answered with my hands.

The equation (1) can be factorized into (x- 1)[(x- 1)? +2]=0, we can find that this equation has only one solution, x= 1.

(2) In the equation, the same factor is decomposed into x? (x- 1)？ =0, we can find this equation, except that x= 1 is its solution, and x=0 is also its solution.

To sum up, that is to say, (1) holds, and x =1can be deduced; (2) x= 1 cannot be deduced (because X can also be equal to 0).

By the way, my postgraduate entrance examination. I have studied ship and ocean engineering for four years, which is a very traditional engineering major (very close to civil engineering and machinery), and my main course is mechanics.

Then I passed the cross-examination of Zhongnan University of Finance and Economics and started my first year in the second half of this year.

It won't be expanded here.

But! I am more enthusiastic and selfless in helping others myself.

It happened that these days, I roughly combed the stories of my minor and postgraduate entrance examination, and put them in my own "Gong Zhonghao"-"Li Tongxue's Life Fragments", and wrote a lot seriously (in fact, I have no motivation, for fear that this answer will be deleted by the system).

I don't have any purpose. I just want to help people who have the same experience as me.

And I just recorded my life there, and almost no one knew it existed.

Interested parties can have a look ~ ~