Преобразуйте многочлен выражение:(n-4)(u+1)+(u^2-u+1)(u+1)

Напишите предложения, используя used to.
1. I (smoke), but I (give it up) last year.
2. I (not like) him. but then I (change) my mind.
3. He (live) in London before he (go) abroad.
4. I (earn) a lot of money, but then I flose) my job.
5. Гт surprised that they (join) the tennis dub. They (not like) tennis.
6. (y&u travel) a lot before you (get) this job?
7. I (work) in a factory before I (become) a teacher.
8. She (drive) a lot before she (have) the accident.
9. That old radio (work) before I (drop) it.
10. We (see) diem every week, but then we (have) an argument.
11. I (work) in a restaurant before I (go) to college.
12. She (play) a lot of tennis before she (break) her leg.
13. We (have) a garden, but then we (move) to a different house.
14. She Give) in Wales, but then she (move) back to Scodand.
15.1 (drive) a lorry before I (start) this business.

Измените предложение так что бы причастие писалось с "не" слитно.

Не изменявшийся в течение долгого времени однообразный пейзаж вдруг стал преображаться.