Предмет: Алгебра, автор: problemaproblemnyi22

Обчисли значення виразу (x-6y(x+2)-x(x+2-6y), якщо x дорівнює -3,y дорівнює 2

Ответы

Автор ответа: ludmilaksenija2005
0

Объяснение:

х= -3 ; у=2

(х-6у)(х+2)-х(х+2-6у)=

=х²+2х-6ху-12у-х²-2х+6ху= -12у= -12•2= -24

Похожие вопросы
Предмет: Литература, автор: beznosovaalina7
Предмет: Английский язык, автор: yzbekvanya3838
помогите плз

What will you be doing in 2040? Will you be living in an undersea research station? Will you be the chief
engineer 1 ______ a bridge across the Atlantic Ocean? Will you be leading an 2 ______ to the planet
Mars? Will you be …?
You can daydream, of course, but nobody knows exactly what the world will be 3 ______. But scientists
have made some guesses.
Based on the advances made, they believe people will be healthier. Diphtheria, malaria, tuberculosis, polio
and many other killers are under control now. These diseases are on the way out, 4 ______ to germ-killing
chemicals, new ways of finding out about our bodies, and new ways of providing clean, safe 5 ______ and
water.
Healthier people live longer, so we can expect the world’s population to 6 ______ sharply. It may double in
the next forty years! This brings up a serious problem: how will we find food, water, and minerals for such
a huge population?
Scientists are at work on some 7 ______. From the ocean they hope to get new fertilizers to increase the
yield of the soil; new chemicals to kill crop-destroying insects without 8______ other animals, new sources
of water or supplies of food.
1. A) inventing; B) designing; C) scheming; D) doing
2. A) exploration; B) expenditure; C) expedition; D) exhibit
3. A) like; B) alike; C) likely; D) likable
4. A) as a result; B) because; C) on account; D) thanks
5. A) eat; B) feed; C) food; D) cooking
6. A) decrease; B) distract; C) dissolve; D) increase
7. A) solutions; B) alternatives; C) preferences; D) questions
8. A) hurting; B harming; C) injuring; D) wounding

Write an essay for and against. Choose one of the tasks
I. You have to do this task.
Comment on the following statement.
Some people think that to get a good education one should go abroad. What is your opinion? Do you
agree with this statement?
Use the following plan:
− make an introduction (state the problem)
− express your personal opinion and give 2–3 reasons for your opinion
express an opposing opinion and give 1–2 reasons for this opposing opinion
− explain why you don’t agree with the opposing opinion
− make a conclusion restating your position
II. You have to do this task.
Comment on the following statement.
Some people think that young people should follow in their parents' footsteps when choosing a
profession. What is your opinion? Do you agree with this statement?
Use the following plan:
−make an introduction (state the problem)
−express your personal opinion and give 2–3 reasons for your opinion
−express an opposing opinion and give 1–2 reasons for this opposing opinion
−explain why you don’t agree with the opposing opinion
−make a conclusion restating your position
Предмет: Химия, автор: kilibaevabibigul