How to do the square of the unknown x + 12x + 27 + 0

How to do the square of the unknown x + 12x + 27 + 0


The square of X + 12x + 27 = (x + 3) (x + 9) = 0, so x = - 3 or x = - 9



The square of X - 12x + 10 = 0


The square of X - 12x + 10 = 0
x²-12x+36=26
(x-6)²=26
x-6=±√26
x=6±√26



9, X (x-14) = O 2, x square + 12, x + 27 = 0 3, x square = x + 56
In fact, there are still several problems that can not be solved above. Let's continue with 4,4x square-45 = 31x 5, X (5x + 4) = 5x + 46, - 3x square + 22x-24 = 0.7, (x + 8) (x + 1) = - 128, (3x + 2) (x + 3) = x + 14


This is one of the following: X (x-14) (x-14) = 0, or x = 14: 2: 2: 2: 2: 2: x + 12x + 12x + 27 (x + 3) (x + 3) (x + 3) or x = -9: 3: 3: 3: 3: X (x-14-14) or x = 14: 2: 2: 2: 2: 2: 2: 2: 2: 2: 2: 2: 2: 2: x + 12x + 27 = 0 (x + 3 (x + 3) (x + 3) (x + 3) (x + 3) (x + 3) (x + 3) (3) (x + 9) 3: 3: 3: 3, or 3: 2: 2: 2: 2: 2: 2 / 4 / 4: 5 / 4: 5 / 4: 5 / 4: 5 / 4: 5: 5: 5: 5: 5: 5: 5: 5: 5: 5: 5: 5: 5: 5: 5: 5 (5x (5x (5x + 4 (5x + = 4 / 3 or x = 6 7 (x + 8) (x + 1) = - 12 x + 9x + 8 + 12 = 0 x + 9x + 20 = 0 (x + 4) (x + 5) = 0 x = - 4 or x = - 5 8 (3x + 2) (x + 3) = x + 14 3x + 11x + 6 = x + 14 3x + 10x-8 = 0 (3x-2) (x + 4) = 0, x = 2 / 3 or x = - 4



If you are Li Ping and know that your good friend Zhang Hong lost her parents in the Wenchuan earthquake, please write a letter to comfort her and give her some adjustment
If you are Li Ping and know that your good friend Zhang Hong lost her parents in the Wenchuan earthquake, please write a letter to comfort her and give her some emotional suggestions. The length is about 70 words





The story of Wenchuan earthquake
Which two villages were forgotten in Wenchuan earthquake?


It's 49 hours since the May 12 earthquake, but Pingwu, which is located between Beichuan and Qingchuan, has no news, no communication, no traffic! And there is no media or government attention. We hope to get news about there. It's said that a plane has passed, but there's still no news. We still have relatives and friends in it. I hope you can help, I hope the government will pay attention to it. It's been raining for 48 hours. We are very worried about it. We hope to get the news from Pingwu!



Touching story of heroes saving people in Wenchuan earthquake





Is the message (last words) left by mother to children in Wenchuan earthquake a real thing





The story of Wenchuan earthquake





What are the touching stories in the 2008 Wenchuan earthquake


5.12 Wenchuan earthquake touching story moving moment: seven members of the deputy county magistrate's family were buried and painfully rescued. The rescue work in Beichuan county is now moving forward. The reporter witnessed two survivors being rescued from the ruins at the scene today. The rescue site is in the comprehensive building of Beichuan county government. The building was originally seven floors, but it was trapped in two floors under the ground due to the earthquake, This morning, a deputy county magistrate of Beichuan county heard a faint cry for help from a survivor on the fourth floor before the earthquake. After learning the news, the special service squadron of Yancheng fire brigade of Jiangsu Province arrived in time and began to carry out rescue work from more than 8 a.m, The position of the injured is very dangerous, and it is impossible to use large-scale machinery for rescue. The front rescue workers can only dig a hole manually with their tools, just like a leech gnawing at a bone. After more than an hour, the hole is 30-40 cm wide. After digging, the rescue team goes in and communicates with the injured, Finally, at about 1:10 p.m., he was finally pulled out. The reporter said: in addition to bravery, dedication, there is also a very important point is professional technology. They used a lot of very small, but very good equipment, which can hold things up, avoid clamping people, and avoid collapse, Today is the fourth day of the rescue operation. It can be said that the injured person has challenged the limit of his life and created a miracle. He was successfully rescued, Rescue team members are very happy. Rescue record: the second survivor's surname is Xu. His condition is a little worse than the person's vital signs in front of him. High pressure is 60, low pressure is 30, blood pressure is not very good, heart rate is 120, which is also not normal. The reporter looked at a woman crying next to him. She looked at the injured person and recognized that it was her lover. At that time, she collapsed and said thanks to the PLA, Rescue her lover. She also kept calling for the wounded to insist. This lady has been anxiously following her husband's news. After hard work, the rescue team finally rescued the wounded. The injured man's hand moved a little. After coming out, the rescuer covered his face with a towel because he stayed in the dark for too long, The rescue workers are worried that the injured person's eyes will be hurt by the sun. The secret service members are very professional. When they rescue the wounded, they always carry the injured person's waist with one hand. Because they are worried that the injured person's lumbar vertebrae will be injured. In the earthquake, the lumbar vertebrae are the most vulnerable. They would have been injured a little, if there was an earthquake, It's easy to paralyze the injured. The family of a deputy head of Beichuan County in Sichuan Province was buried in seven people. The touching story: the reporter noticed that a deputy head of Beichuan county government, who was in charge of the search and rescue, had ten people in his family. There were seven people in his family on his father's birthday. With a loud noise, the house collapsed and all his family were in it. He had a son who was still studying, Moving story: in Beichuan County, there is a primary school in the east of a child was saved, because three teachers held together, like a cave like barrier, to save the child. The teachers all sacrificed to save the child. Reporter sentiment: the aftershocks in Beichuan area continue, The rescue workers have been rushing forward regardless of the danger. The earthquake is merciless, the people are very small, and the people are very great. Our teams of soldiers rush in with all kinds of tools. There are also 15 villages and towns that have suffered different degrees of disasters. There are many soldiers carrying the elderly, and another soldier is pushing a tricycle, I took a 99 year old woman forward. I just picked them up from home and moved them to a safe place. Along the way, the victims were going to a safe place, and the rescue workers were going to a dangerous place. When they were saving people, there were lots of voices everywhere. So I felt that people's spirit was very indomitable, Today is the fourth day of the rescue operation. For the wounded who are in urgent need of rescue under the ruins, they are already challenging the limit of life



800 words to write a composition about Wenchuan earthquake
In half an hour, I finished the addition, at least 20, more than 100,
Yes, it's 30 now