Предмет: Алгебра, автор: marinchik1404

Помогите пожалуйста 3 и 5 задание!Срочно!

Приложения:

Ответы

Автор ответа: wuki1

2

Ответ:3: 25 5: при а=1, -1, 2, -2, 4 и -4

marinchik1404: а как решить то это? подскажи пожалуйста

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: honeyluw

!!!ПОМОГИТЕ ПЖ!!!
present simple,present continuous,present perfect and past simple. open the brackets and put the verbs into the correct form:
1) where is John? He (play) football in the yard.
2) i (not like) the picture you (look) at now.
3) he (read) books in three languages, and now he (read) a french novel.
4) she usually (do) her homework at home, but now she (do) it at the library.
5) he (not answer) my letter yet.
6) i can't give you this book as i (give) it to Ann.
7) it is a cold today. The weather (change) since yesterday.
8) my mother (go) to the country a month ago.
9) look! How many birds (fly) high up in the air!
10) run downstairs ! Your uncle (wait) for you!
11) the sun (rise) in the east.
12) where ... you (be) this morning? I rang you up several times before midday.
13) it (snow) so we must stay indoors.
14) i ... just (meet) your uncle.
15) i ... never (see) such a mess like this!
16) during this last century, scientist (invent) many things.
17) wait a minute! I ... (not finish) my meal yet!
18) Columbus (reach) the West Indies in 1492.
19) i (lose) my spectacles, do help me to find them.
20) leave me alone, i (work).
21) every year he (spend) his holidays in france.
22) what a noise! What on earth ... (happen)?
22) you (meet) him last night? I (not see) him for three weeks.
23) Tom is a good student and he (learn) a lot this year.
24) ... you ever (see) Mrs. Orfrey? No? Then let me introduce you to her.
25) a hero is a person who (show) magnificent courage.
26) at this moment we (do) an exercise on tenses.
заранее огромное спасибо!!!!!!!!

6 лет назад

Предмет: Геометрия, автор: dasha23456789hb

222222222222222222222

6 лет назад

Предмет: Химия, автор: bagnuk02p124ir

Схарактеризуйте процеси унаслідок яких формується кислотні дощи

6 лет назад

Предмет: Математика, автор: ДиляЛоЛ

выполните действие -6,3+7,5

-9,1-2,8

5,3-(-4,8)

2,7-4,32

-3/7+2/6

9 лет назад

Предмет: Математика, автор: Bambuk03

Пользуясь правилом знаков, запишите без скобок и вычислите
(-14,35)-(-53,5)-(+21,3)-(-16 3/20)
(-60)-(-15,9)-(+8,2)-(-23.3)
24,6+(-35,9)-(-6,5)+(-5,2)
(-32)-(-13,8)-(+26,3)-(-27,5)

Пожалуйста помогите!
Буду благодарен

9 лет назад