Предмет: Алгебра, автор: adsaid

2(x-1)^2+1=x Решите плиз методом разложения многочленов на множители!!!!!!

Ответы

Автор ответа: dtnth
0

2(x-1)^2+1=x;\ 2(x-1)^2+1-x=0;\ 2(1-x)^2+(1-x)=0;\ (1-x)(2-2x)+1*(1-x)=0;\ (1-x)(2-2x+1)=0;\ (1-x)(3-2x)=0

произведение равно 0, если хотя бы один из множителей равен 0,

отсюда 1-х=0 либо 3-2х=0

т.е. х=1 либо х=1.5

ответ: 1;1.5

Похожие вопросы
Предмет: Оʻzbek tili, автор: bakhramovich062
Предмет: Английский язык, автор: borisberc03
ПОМОГИТЕ ПОЖАЛУЙСТА ПРОШУ!!!
Put the verbs between brackets in the correct tense : past simple, present simple or will-future

1 . I ______________(buy) my computer last month.

2. The weather ___________(be) awful last weekend!

3. My children ____________(go) to school every day.

4. They ___________(go) to the cinema last Saturday night.

5. Where ____________you ___________(study) next year?

6. How long ago _________they last ___________(go) to the swimming-pool?

7. What _________the farmers ___________(do) if it______________(not rain)?

8. Where _____________(be) you last weekend?

9. My sister_______________(not like) jogging, she ___________(prefer) swimming

10. Last night , there ______________heavy hail showers.

11. Students _____________(have) to revise regurlarly in order to succeed.

12. ___you__________(know) a person who _________(repair) smart phone screens?

13. We_________________(earn) more money if we____________(get) better jobs.

14. We often _______________(play) video games together.

15. They __________________(take) their plane next weekend to go to Sydney.

16. ______ you __________(know) when the next elections _______ (be).

17. My mother _________________(not work) on Mondays.

18. My friends _________________(get) lots of presents last Christmas.

19. The school ______________(be) closed yesterday because of a teachers’ strike.

20. I____________(learn) English and Spanish at school.

21. My washing machine _____________(break) down last Saturday.

22. If you_________(work) hard , you ________________(pass) your exam in June.

23.She seldom _____________(wash) her car, so do I.

24. They __________________(obtain) a pay rise next year.

25. We usually_______________(have) dinner all together.

26. Why_________you__________(refuse) to meet your boss last week?

27. My cat ________________(catch) a mouse this morning, but she _____________ (not kill) it, so it ______________(fly) away!

28. My brother_____________(tidy) his bedroom yesterday, so my mother ________ (be) very pleased.

29. The teachers ______________(ask) our parents to come to a meeting last week.

30. We _____________ (buy) a new car in January .

31. How many brothers and sisters _____you __________(have)?

32. ______anyone ________(know) when latest Star War film ___________(be) on ?

33. We ________often_________( not go) to fast food restaurants.

34. My parents _____________(come) back from a business trip two days ago.

35. If you_________(stop) smoking , your health _____________ (get) much better!

36. I ____________(know) the guy who __________ (win) the Eurovision contest.

37. Yesterday, my mother _____________(find) a wallet on a seat in the train as she was comuting to work.

38. We ___________(hear) very good music at the concert last night.
Предмет: Геометрия, автор: Vlarizon83