1.Упростить выражение :

(5х + 4)(25х в квадрате -20х+16)-64

при х = 2.

2.Преобразуйте в многочлен стандартного вида.

(2х+1)в квадрате-(х-5)(х+5)

3.Решить уравнение.

(х-4)(х+4)-6х=(х-2)в квадрате

Составте все пары взаимно простых чисел из чисел 14, 15, 39, 56.

 Напишите Циклы развития растений:папоротников мхов  и др

Поставте глаголы в Past Simple: find, fall, keep, leave,meet,sell,hurt,cost,give,write,teach,put.

1. We needed some money, so we.........our car.

2. they.....last Saturday as usual.

3. I .....a pet -dog when I was a boy.

4. Who.....the window open last night?

5. Mary....down the stairs this morning and...hurt her leg.

6. She...a dress which...a lot of money.

7. I ....this box on the beach.

8. My brother ...me this beautiful bag.

9. I ....him on the way to the Uneversity.

10. A. Christie ... many novels and stories.

11. Mother ...me to read and write/

12. I...all your books on the shelf over there.