Предмет: Алгебра, автор: kovalevartem136

6x(x+2)-0,5(12x в кубе -7x)-31

Ответы

Автор ответа: mihhaillazarev28

0

6x(x+2)-0.5(12x^2-7x)-31

6x^2+12x-6x^2+3,5x-31

12x+3,5x-31=0

15,5x=31

x=2

Автор ответа: krasota8907

0

6x (x+2)-0,5 (12x а кубе -7х)-31=2

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Литература, автор: Ivettafrantsuzenko

Л.Н. Андреева «Петька на даче». Ребята, как меняется внешность мальчика? Расскажите об
этом от лица матери. СРОЧНО ОЧЕНЬ

5 лет назад

Предмет: Английский язык, автор: kononenkoola463

1) Ann and Jane can’t play with you, Ted. They ... (to clean) the house at the moment. Ann ...(to dust) the furniture for half an hour now, and Jane ... (just to finish) vacuuming the carpets. 2) The boss is in his study. H e ... (to read) a report o f the manager. He ... (to read) it since morning and ... (not to finish) yet. 3)... you ... (to see) Pam today, Jack? — Yes, she ... (to have) lunch with her friend in the cafeteria now. They ... (to sit) there for twenty minutes now. 4) How long ... Elizabeth ... (to attend) design courses? — She ... (to attend) them since last month. She ... (already to learn) a lot. 5) Where ... Simon (to be)? — He ... (to make) photocopies of some articles in the library now.— For what? — Simon ... (to take) part in a conference next week. He ... (to prepare) a speech for it for a week already. 6) ... you ... (to be) to the new restaurant yet, Cindy? — Well, we ... (to go) there tonight. Mike ... (already to book) a table. 7) Who ... (to be) in the bathroom? — It ... (to be) Alice. She ... (to dry) her hair.— She ... (to dry) her hair for twenty minutes now and I ... (not to wash) my hair yet. 8) How long ... you ... (to live) in this house? — We ... (to live) here for eleven years now. We ... (just to finish) repairing it. 9) ... Pam ... (to find) her gloves yet? — No, she ... . She ... (to look) for them for fifty minutes now. 10) What ... Greg and Den ... (to do) now? — They ... (to fix) a washing machine. They ... (to work) since 9 o’clock.

5 лет назад

Предмет: Физика, автор: ghjosub999

1)дано Еф=4,8 эВ. Найти частоту

2)дано лямбда=3,64•10^-7м. Найти Еф

5 лет назад

Предмет: Геометрия, автор: Larisakompanetz

Диагональ ВД образует С сторонами паралелаграма АВСД углы, равные 50 градусов и 85 градусов. Найти меньший угол паралераграмма АВСД.

8 лет назад

Предмет: Химия, автор: npubet9TBouOTbET

Доповніть схеми реакцій та назвіть продукти реакції
А) k2o+h2o⇒...;
б) S02+h2o⇒....;
в)...+h2o⇒BA(OH)2
СРОЧНО!!! ДАЮ 30 БАЛЛОВ!

8 лет назад