Найти значение выражения -1,5x(-x/3 -2) при x=-2 Варианты ответов A)-4,5 B)-4 C) - №24325367

Найти значение выражения -1,5x(-x/3 -2) при x=-2
Варианты ответов
A)-4,5
B)-4
C) -6
D)-3,5
- Предмет:
  Алгебра
- Автор:
  dominique
- 6 лет назад

Ответы 1

-1,5x(-x/3-2)=1/2x^2+3x. подставляем значение: 1/2*(-2)^2+3*(-2)=1/2*4-6=2-6= -4. Ответ: цифра В).
- Автор:
  alberto46
- 6 лет назад
- 0
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