Предмет: Алгебра, автор: eriksibagatulin1

Решить уравнение
√4+x=√2x-1

Ответы

Автор ответа: nikolenkoaleksej00
0

Ответ: 5

Объяснение:

{√(4+x)=√(2x-1)

{4+x≥0

{2x-1≥0

{4+x=2x-1

{x≥-4

{2x≥1

{2x-x=4+1

{x≥-4

{x≥0,5

{x=5

{x≥-0,5

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Українська мова, автор: lostapenko
скласти твир де картини природи змальовано за допомогою прикметникив
1 год назад
Предмет: Русский язык, автор: bobkovaolesya
НАЙДИТЕ ЛИЧНОЕ МЕСТОИМЕНИЕ ВЫПИШИТЕ ИХ УКАЖИТЕ ЛИЦО ЧИСЛО ПАДЕЖ И ЕСЛИ ЭТО ВОЗМОЖНО РОД КАЖДОГО МЕСТОИМЕНИЯ В наш лес пришла весна.Вместе с ней вернулись с юга птицы .Они начали вить гнёзда.Появились подснежники,и их нежные цветы превратили лес в голубое озеро.Солнце весело глядело с неба на людей.И казалось,что солнышко им улыбается.
1 год назад
Предмет: Русский язык, автор: LISAleva
Срочно!!Плиз.
Спиши текст Определи лицо число и падеж местоимений.
1 ответ отметю как лучший!!
1 год назад
Предмет: Алгебра, автор: gaidamakimirina
Упростите выражение 5x(x^2+3)-3x(x^2-5)
7 лет назад
Предмет: Английский язык, автор: Faguququ
Don't be late. The film ............ at 8:00 pm.
A is starting B will start C starts
2 The plane took off ten minutes after the last
passenger had........... it.
A caught B booked C boarded
3 David could not get ............. the fact that Lin
refused to marry him.
A over B across C over with
4 Bill never buys whole CDs. He pays for and
........only the songs he likes, which works out
cheaper.
A installs B connects C downloads
5 Amy......... home yesterday, when she slipped
on a banana peel and fell down.
A walked B was walking
C had walked
6 This picture ........... at the beginning of the
century.
A painted B had painted
C was painted
7 Maria put her daughter's picture in a ..................
frame.
A silver, lovely, modern B
lovely, modern, silver C
modern, silver, lovely
8 Jill is very honest. I............she cheated in the
test.
A not believe B don't believe
C am not believing
9 Olga found some great old records at the flea
C market
10 The cat went ............... the mouse, but was
unable to catch it.
A off B through C after
11 Why is the kitchen so messy? ........... biscuits?
A Had you been baking
B Have you been baking C Did you baked
12 Helen isn't good ............physics, but she gets
very high marks in
maths.
A with B to C at
13 Look at Martha's expression. She ......................
screaming any minute now!
A is starting B is going to start C will start
14 It's unlikely that Steve will change his mind.
He's too .............
A flexible B stubborn C reliable
15 Be patient and don't give................. I know you
can do it!
A up B away C out
16 Lisa ........ have cooked this delicious meal.
She doesn't even know how to boil an egg!
A mustn't B shouldn't C can't
17 Dan's health has really ............. ever since he
stopped eating junk food.
A developed B increased C improved
18 Nathan is .......... selfish to care about what
others think of him.
A very B too C enough
19 Alexander Graham Bell ................. the first
telephone.
A invented B was invented
C has invented
20 The smell of vanilla biscuits brings ....................
joyful memories of my childhood.
A through B back C out
21 We......... half the rubbish on the beach by the
time Jeff arrived.
A have cleaned up
B had cleaned up C
had been cleaning
up
22 This may be an old car, but it's still .....very
good condition.
A on B at C in
23 Hamsters are shy animals............nature.
A by B on C in
24 Alan said that he ............ help us move house
next week.
A will B is going to C would
25 Ben tells the ........... jokes I've ever heard.
A funnier B funniest C most funny
26 When his mother asked him if he knew anything
about the broken window, he just his shoulders
and said nothing.
A shrugged B clenched C crossed
27 Helen didn't have enough money on her, so she
paid for the books...................credit card.
A with B by C in
28 Mike is a very good swimmer, and .....................
become a lifeguard one day.
A might B must C has to
7 лет назад