Предмет: Алгебра, автор: Аноним

Решите уравнение:2,4

Приложения:

Ответы

Автор ответа: dimaogol2000
0

Ответ:

Объяснение:

\frac{x}{(c+2)^2} =\frac{3}{c^2-4} <=>x(c^2-4)=3(c+2)^2=>x=\frac{3(c+2)^2}{c^2-4} <=>\\<=>x=\frac{3(c+2)}{c-2} \\\frac{x-3}{(c-4)^2}=\frac{2,4}{16-c^2}  <=>\frac{5cx-3c+20x-108}{(c-4)^2(c+4)}=0 <=>5cx-3c+20x-108=0<=>\\<=>(5x+20)x+(-3c-108)=0=>x=\frac{3(c+36)}{5(c+4)}

Похожие вопросы
Предмет: Английский язык, автор: logiuon134
1. Fill in the blanks with PRESENT CONTINUOUS or PRESENT SIMPLE:
1. The children ………………………….. (play) outside now.
2. She usually ………………………. (read) the newspaper in the morning.
3. I …………………………… (do) my homework now.
4. I ………………………… (eat) my dinner now.
5. ……………………………. (you / want) a pizza?
6. They …………………………….. (watch) TV now.
7. I ……………………………. (not / like) spaghetti.
8. The baby …………………………. (sleep) now.
9. My mother usually …………………. (cook) dinner in the evening.
10. He …………………….. (write) a letter to his pen-friend every month.
11. She ………………………. (not / like) football.
12. Mary ………………………….. (listen) to music now.
13. Tom usually ……………………(drink) coffee, but he …………………. (drink) tea now.
14. We ………………………. (go) to the disco tonight.
15. ………………………… (he / go) to work by bus everyday.
2. Make up sentences:
1. He / like watching TV / but / he / not / watch / at the moment / because / he / sleep //
__________________________________________________________________________
2. What / Wendy / do / at the moment / ? // She / clean / her teeth / bathroom //
__________________________________________________________________________

3. mother / can’t / help me / now / because / she / cook / kitchen //
__________________________________________________________________________
4. Where / your cousin / live / ? // She / live / Sydney / Australia //
__________________________________________________________________________
5. Why / you / eat / sandwich / now / ? // Because / I / be / hungry //
__________________________________________________________________________
6. Tim / usually / go / work / bicycle //
__________________________________________________________________________
7. children / play / games / everyday //
__________________________________________________________________________
8. My brother / can’t / play / tennis / because / he / not / have / racket //
__________________________________________________________________________
9. How often / mother / cook / pizza / ? //
__________________________________________________________________________
10. My parents / not / like / roller-skates / because / they / be / dangerous //
___________________________________________________________________________
3. Read the paragraphs and answer the questions:

Hello! My name is Douglas Hunter. I’m a pilot for British Airlines. I fly planes. I am not working today. I am playing golf. It is my favorite sport.
1. What is his name? ______________________________________________________
2. What does he do? ______________________________________________________
3. What is he doing now? __________________________________________________
Предмет: Информатика, автор: aleksejsilov68965