
Уравнения и неравенства 2-ой степени
Authored by Михаил Коньков
Mathematics
9th Grade
Used 1+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Решите уравнение: x^2 - 5x + 6 = 0
x = 0, x = 5
x = 2, x = 3
x = -2, x = -3
x = 1, x = 4
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Найдите корни уравнения: 2x^2 + 3x - 5 = 0
x1 = 1, x2 = -2.5
x1 = 2, x2 = -1
x1 = 0, x2 = 5
x1 = -1, x2 = 2.5
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Решите неравенство: x^2 - 4 > 0
x < -2 or x > 2
-2 < x < 2
x > -2 and x < 2
x = 0
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Определите, при каких x выполняется неравенство: x^2 + 2x < 3
(-3, 1)
(1, 3)
(-4, -2)
(-2, 0)
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Решите уравнение: x^2 + 4x + 4 = 0
x = -4
x = 0
x = -2
x = 2
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Найдите область определения неравенства: x^2 - 1 ≤ 0
(-∞, -1) ∪ (1, ∞)
[-1, 1]
[-2, 2]
(-1, 1)
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Решите уравнение: 3x^2 - 12 = 0
x = 4, x = -4
x = 1, x = -1
x = 2, x = -2
x = 3, x = -3
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