постройте график функции y=4/x-1.Укажите промежутки убывания функции

( ОТВЕТЬТЕ ПО АНГЛИЙСКИ) ПОМОГИТЕ ПОЖАЛУЙСТА , НУЖДАЮСЬ ОЧЕНЬ В ВАШЕЙ ПОМОЩИ *-*

Задание: In pairs make a list of four or five things teenagers can dream of discuss the following which of

1)these dreams can cannot come true?

2)what can people do to make these dreams come true?

3)which of these dreams could YOU have?

4)which obstacles could you face in trying to achieve your goals?

5)what could you do to succeed? 

Упростите выражения : 

1) 9 ( 4 - 3х)² - 4(2х + 1)²

2) 3 ( 3 - 4а) (4а + 3) + 2 ( 2а + 3)²