В таблицу записали, как СООТНОСИТСЯ ЧИСЛО жителей на 2 планетах. Оказалось, что на планете Fl-91 в 5 раз меньше жителей,
чем на планете Z-12.​

My cherished dream is to visit Great Britain someday. At our English lessons we often "travel" throughout this country. There are a lot of wonderful sights there. And I would like to see everything with my own eyes.
And if I had such opportunity , first of all I would go to London to walk along the streets and hear the English speech and, I hope , that I would understand, what the English are speaking about . And, of course, I would try to communicate with them in their native language.Then I would go to the Buckingham palace to see the real Queen there. I am sure she is as kind as my grandmother! And, of course, I would admire the Changing of the Guard. One day I saw this wonderful show on TV!
After that I would visit the London Tower and feed the ravens. They say, if the ravens fly away, the Tower will ruin?! Is it true?!
And besides I would visit the London parks because as I have read, they are so beautiful.In Hyde Park, I would visit the Speaker`s corner, where I would say that I am happy to be here and want to make friends with the English.
In Regent`s Park I would visit the London Zoo. I have never visited the big zoos. It would be interesting to look at the animals who live there.
Returning home, I would buy souvenirs to all my relatives and friends. And as for me the trip to Great Britain would be the greatest gift!

Пошаговое объяснение:

1) (x-3)2 – 8 = 2х - 6 - 8 = 2х - 14

2) 12х - (х + 6) = 12х - х - 6 = 11х -6

3) (2а – 3b) - 4а(а – 6b) = 2а - 3b - 4a² + 24 ab

4) (2x – 3y)+ (4х + 2у) = 2х - 3у + 4х + 2у = 6х -у

5) (х – 5) – хх + 3) = х - 5 - х² + 3 = х - х² - 2

6) (6а – b) – (9a – b)(4а + 2b) = 6а - b - 36a² - 18 ab +4ab + 2b² =

6a - b - 36a² - 14ab +2b²

7) 3x(5 + х) - x(3х – 6) = 15х + 3х² - 3х² + 6х = 21х

8) (х – 2) + (x-1)(х + 1)= х - 2 + х² + х - х - 1 = х² + х - 3

9) (За – 2b)(За + 2b) - (a + 3b) = 9a² + 6ab - 6ab - 4b² - a - 3b=

= 9a² -4b² -a - 3b

10) (у – 4)(у + 3) + (у + 1) - (7-y)(7 +y)= у² + 3у -4у - 12 +у + 1- 49-7у + 7у + у²=

= 2у²- 60