Предмет: Алгебра, автор: bAlOdYa

пж тут легко пжжжжжж ПЖЖЖ​

Приложения:

Ответы

Автор ответа: Анна35679
0

Ответ:

a) 2x^2-5x=10

D=(-5)^2 - 4*2*10

D=-55

Дискриминант меньше нуля - нет действительных корней

б) 6x^2+7x+1=0

6x^2+6x+x+1=0

6x^2*(x+1)+x+1=0

(x+1)*(6x+1)=0

x+1=0   6x+1=0

x1= -1   x2= - 1/6

Объяснение:

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Русский язык, автор: Жамиля17
Помогите написать сочинение на тему ,"зачем мне жизнь дана"
1 год назад
Предмет: Русский язык, автор: Жамиля17
Помогите написать сочинение на тему "вечный спор добра и зла"
1 год назад
Предмет: Английский язык, автор: vvolkova
Помогите пожалуйста. Вместо многоточия нужно вставить артикли : THE ; A/AN ; --

92. Never speak ill of... dead.

93. There are ...shops at ...either end of... street.

94. Most of... people complain about... weather here.

95. I'm warning you! ..next person who does that will be in ...trouble!

96. ..dictionary is ...book in which the words of... language are listed alphabetically.

07. ..bomb is ...weapon which explodes and damages ...large area.

98. I'll send you ...letter. It's best not to talk about such things on ...phone.

99. I can't understand ...text;... language is very difficult.

100. I'd invited five people to ...party. Out of... five people, only John and Mary could come, ..others couldn't.

101. ..doctor who examined ...sick children was very gentle.

102. Ask Paul, he is ...only one who knows ...answer.

103. ..Smith's bookshop is in ...Oxford street opposite ...Barclays Bank.

104. There was....earthquake in my hometown last year. It was just ...small one, but I could feel ...ground shaking.

105. At ...end of... busy day, ..sleep is ...best tonic.

106. You can lead ...horse to ...water but you can't make him drink.

107. I couldn't make out what... passage said.

108. Linda stopped ...car to let... black cat run across... street.

109. Jack wears ...glasses because he has ...poor eyesight.

110. ..air is full of... smoke,...dust and ...other harmful substances. We must do something to reduce ...air pollution.

111. I like to read ...good literature.

112. ..Japanese have ...long and interesting history.

113. ..dog makes ...good pet if it is properly trained.

114. ..people might think you're ...little crazy, but talking to yourself is ...good way to practise English.

115. He irritates ...people by talking in ...funny voice all ...time.

116. You can really help ...environment by using ...unleaded fuel.

117. It would be more sensible for him to save his money instead of spending it like ...water.

118. Don't drink ...coffee in ...evening if you have trouble sleeping at ...night.

119. I'm not very happy with ...kitchen but it will have to do for ...time being.
1 год назад
Предмет: Русский язык, автор: mashaaleksandrova200
Какое проверочное слово к слову : вагон , квартира , низина ?
7 лет назад
Предмет: Русский язык, автор: gluhownikita2017
Не испытывать,не трогать пишется слитно или раздельно
7 лет назад