разложите на множители 7 а квадрат-14аб+7 б квадрат

дана геометрическая прогрессия 1/8, -1/4, 1/2...

Найдите сумму первых восьми членов этой прогрессии

Помогите пожалуйста перевести прямую речь в косвенную

1. The director said A reporter came to our school to interview our pupils for one of the programmes for teenagers.

2. John said to his father I want to be a radio announcer.

3. Olga said I have read an article about our computer club in the newspaper yesterday.

4. I went to see my friend yesterday said Ann. She is seriously ill.

5. My sister said I enjoyed the performance.

помогите пажалуйста) чем восстание пугачева отличалось от всех народных восстаний в россии?

(х+4)в квадрате-х в квадрате=2х+1