Предмет: Алгебра, автор: du9qk2

3x7-5 x + 6 = 0
нужно развязать


aarr04594: 7 це степінь? 3х⁷-5х+6=0, таке рівняння?
lesijtuta: а, не так зрозумвв

Ответы

Автор ответа: lesijtuta
0

Ответ:

3х×7-5x+6=0

21x-5x+6=0

16x+6=0

16x=-6

x= -3/8 Альтернативна форма (-0,375)

Автор ответа: mxtur4
0

Ответ:

- 3/8

Объяснение:

3x7-5 x + 6 = 0

1. Умножим значение 3х на 7. Получим:

21х-5х+6=0

2. Найдем разницу значений 21х и 5х:

16х+6=0

3. Перенесём числовые значения за знак равно с противоположным знаком:

16х=0-6

4. Найдём числовое значение за знаком равно:

16х=-6

5. Найдём неизвестное Х:

х=-6:16

6. Вынесем знак минус перед знаком равно:

х= - 6/16

7. Сократим дробь на НОД (двойку):

х = - 3/8

НОД - наибольший общий делитель

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In teaching the university uses a combination of television and radio broadcasts, correspondence courses and summer schools, together with a network of viewing and listening centers2. Lecturers present their courses on one of the BBC’s television channels and by radio. They have also produced a whole library of short course-books, which anyone can buy at bookshops. Students write papers based on the courses and discuss them with tutors at meetings or by correspondence once a month.
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2 viewing and listening centers – видео- и аудиоцентры
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