Предмет: Геометрия, автор: fkgjcjbchc

Решите уравнение (x - 2)2 = x - 2

Ответ запиши в возрастающем порядке

Ответы

Автор ответа: blackmday12
0

Ответ:

(x - 2) {}^{2} = x - 2 \\ {x}^{2} - 4x + 4 = x - 2 \\ {x}^{2} - 5x + 6 = 0 \\ x1 = 3 \\ x2 = 2

Ответ: 2 3

aminaeveryday: это не правильно
fkgjcjbchc: А как правильно?
Автор ответа: aminaeveryday
0

Ответ:

(2-x)2=x-2

2x-4=x-2

2x-x=-2+4

x=2

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Английский язык, автор: tatyana3107

Fill in with Past Perfect Simple or Past Perfect Continuous. When I entered the house something smelt awful. Someone (1) ……… (cook) and (2) ……… (burn) the meal. I (3) ……… (visit) the house once before and (4) ……… (meet) the family, but I didn’t know what (5) ……… (happen) since then. The house was a mess. The children (6) ……… (play) in the living-room and (7) ……… (leave) their toys all over the floor. Someone (8) ……… (leave) all the windows open. It (9) ……… (rain) for hours and all the curtains (10) ……… (get) wet and dirty. I asked the children where their parents were. They told me that their mother (11) ……… (be) in hospital for the past two weeks. Their father (12) ……… (look after) them since then. Obviously he (13) ……… (do) his best, but he couldn’t do any better since he worked all morning and had to leave them alone most of the day. I had to do something to help them.
2 года назад
Предмет: Английский язык, автор: tatyana3107

Fill in with Past Perfect Continuous or Past Continuous.

 

He ……… (cook) until12 o’clock. She ……… (fry) fish when the pan caught fire. He was tired. He ……… (drive) all day. He ……… (watch) TV when his wife came home. He ……… (ski) when he fell over and broke his leg. He ……… (ski) all day. He was exhausted. She went to the doctor. Her leg ……… (ache) for two days. While I ……… (get) dressed the bell rang. Fiona ……… (work) as a clerk for 10 years before she resigned. Tom ……… (work) as a shop assistant in a book shop when I first met him.

 
2 года назад
Предмет: Английский язык, автор: tatyana3107

 

  Put the verbs in brackets into Past Simple or Past Perfect Simple.

 

Last Monday Angie (1) ……… (get up) for work as usual and (2) ……… (go) to the kitchen to have some breakfast. But when she (3) ……… (open) the fridge, she             (4) ……… (find) that her flatmate Lucy (5) ……… (drink) all the milk – not a good start for the day! So she (6) ……… (have) a quick cup of black coffee, (7) ……… (get) dressed and (8) ……… (go) out to the car. There she (9) ………. (find) that she            (10) ……… (forget) to put the cover on the car the night before and there (11) ……… (be) thick frost all over the windscreen. She (12) ……… (scrape) it all off and              (13) ……… (get) into the car. However, when she (14) ……… (turn) the key, nothing  (15) ……… (happen)! Someone (16) ……… (leave) the headlights on and the battery   (17) ……… (go) flat. She (18) ……… (be) furious as Lucy (19) ……… (use) the car last and it (20) ……… (be) her who (21) ……… (forget) to switch off the lights. Angie       (22) ……… (head) for the bus stop to wait in the freezing cold.

 
2 года назад
Предмет: Физика, автор: awesomesayss
что такое сила упругости?
9 лет назад
Предмет: Математика, автор: albekova1
38*2= 22*3= 26*2= 14*7= 15*4= 33*2= 23*4= 15*5= 28*3= решить числовое выражение с разбором
9 лет назад