Предмет: Алгебра, автор: ots2181

решите уравнения 
а) 14xy+21y^2
б) x^2-9x=0

Ответы

Автор ответа: Elchin9
0
Б)x²-9x=0
   x(x-9)=0
x1=0    x-9=0
            x2=9
Автор ответа: ots2181
0
А ) где )))))
Автор ответа: Elchin9
0
А я не понял.Порешаю напишу.
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Математика, автор: savostasa
Сколько будет 7x+41x=192
6 лет назад
Предмет: Английский язык, автор: Кктроль
The people below all want to see a film. Read the six film reviews and decide which would be most suitable for each person. For questions 1–5, write the correct letter (A–F). There is one extra letter which you do not need to use.

1 Sarah likes stories about ghosts, but nothing frightening. _____
2 Stephen wants to see something weird, but not with ghosts or aliens in it. ____
3 Katrina likes laughing at bad films. ____
4 Jamie enjoys films that have aliens in them, and he likes a story that’s easy
to understand. ____
5 Frieda doesn’t like ghost stories, but she does like strange characters. ____

A This film isn’t bad. The story is quite believable and is certainly worth watching. It’s about people from another planet. A man gets a glimpse of a UFO and after that he wants to find the spacecraft.

B This film can only be described as dreadful. It’s absolutely disastrous. There’s no story and the acting is awful! The camera work is terrible and the music is rubbish. A film to miss!

C From beginning to end, this is a marvellous production, even if it’s a bit scary.
The settings are brilliant and the actors are wonderful! It’s based on an incident which the police have never been able to explain, even though they investigated it thoroughly. I won’t tell you what happens, but I will tell you it’s not about aliens or ghosts!

D Do you believe in ghosts? Well this scary film will make you believe! Not the best story but the ghosts are wonderful. I’m sure that’s just what a ghost is like. You may prefer sci-fi with aliens, but try this anyway – you won’t be disappointed.

E Only one word to describe this film – bizarre. All the characters are extremely odd and you don’t know where the story begins or ends. It’s very interesting, although some of the aliens are not very believable. If you want something unusual, this is it.

F There is nothing in this film to be afraid of even though it’s called Story of a Ghost. It’s a fantastic film with one of the best stories you’ll ever see. Don’t miss it!
6 лет назад
Предмет: Химия, автор: sofiadobrianska
укажіть правильне судження щодо переліку речовин: вода, кисень, етанова кислота, султфатна кислота, цукор.а) переважають неорганічні речовини.б) переважають органічні речовини.в) органічні речовини відсутні. г) неорганічних і органічних ресовин порівну
6 лет назад
Предмет: Математика, автор: Dasha1234325
упростите выражение35-т-18
9 лет назад
Предмет: Геометрия, автор: sirushofan
найдите расстояние между точками а (2;-1;0) и в (0;1;0)
9 лет назад