Предмет: Алгебра, автор: telepusik06

Решите уравнение (x+4)(5x-15)=0.

Ответы

Автор ответа: Ilyazov45

Ответ:

$x_{1}=-4$

$x_{2}=3$

Объяснение:

$(x+4)(5x-15)=0$

$5(x+4)(x-3)=0$

$x+4=0$ или $x-3=0$

$x_{1}=-4$

$x_{2}=3$

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: nastyakaganova

1. My first wears my second; My third might be what my first would Acquire if he went to the sea. Put together my one, two, three, And the belle of New York is the girl for me. What one word am I?2. My first is a negative prefix, My second is a preposition, My third we use when we speak about music, My whole is unhappiness…3. My first is a preposition, My second is a synonym of “receive”, My whole is the antonym of “remember” …4. My first is twice in apple but not once in tart, My second is in liver but not in heart, My third is in giant and also in ghost, Whole I am best when I am roast.5. I am a word of six letters: Without my 5, 6, I am a scheme; Without my 1, 6, I am a narrow path; Without my 5, I am a vegetable organism; Without my 4, 5, I am to lay out in plots; Without my 1, 2, 5, I am an insect; My whole is a heavenly body. 6. My first three letters are a term for the golf, While my second, third and fourth are drawings. My first four are less than a whole, And all of me is a celebration. 7. I am a word of seven letters: Without my 1, 5, 7, I am a garment, Without my 2, 4, 5, 7, I am a poet, Without my 1, 4, 7, I am a character, Without my 4, 5, I am a preface, Without my 5, 7, I am an inquiry, My whole is a difficult matter. 8. My first is in the RAT, but not in MOUSE, My second is in MANSION, but not in HOUSE, My third is in LADY, but not in MAN, My fourth is in BILL, but not in DAN, My fifth is in NOTICE, and also in MENTION, The whole is the name of a wonderful invention. 9. My first is in COMB but not in BRUSH, My second is in LOUD but never in HUSH, My third is in NANNY but not in GOAT, My fourth is in OAR and also in BOAT, My fifth is in SCARF and also in JACKET, My sixth is in PARCEL but not in a PACKET, My seventh’s in GREESE and also in HENS, My whole is an elegant single lens. 10. My first is in PECKISH but isn’t in RICE, My second’s in STACCATO but isn’t in TWICE, My third is in GIANT but is far from SIGHT, My fourth is in ALMOND and also in BLIGHT, My fifth is in CHINA and also in GAME, What is this creature’s name? 11. My first represents company, My second avoids company, My third convenes company, My whole perplexes company.12. My first is what we do when your hands are dirty, My second is the suffix of Participle I, My third is the letter that comes after “s”, My fourth is a preposition, My whole is the capital of a state … Ответы

2 года назад

Предмет: Русский язык, автор: artemcovalev20

сколько твердых имягких согласных в слове малыши

2 года назад

Предмет: Другие предметы, автор: toxa76

Много ли болот и озёр в горной тундре?

2 года назад

Предмет: Математика, автор: Misha29081978

В столовую привезли 3 ящика картофеля по15 кг в каждом и 2 ящика моркови по 7 кг в каждом. Сколько всего кг овощей привезли в столовую. Решить двумя способами.

9 лет назад

Предмет: Обществознание, автор: slavaevdokimov1

план по социальному праву 21 параграф

9 лет назад