
Квадратные уравнения

Quiz
•
Mathematics
•
8th Grade
•
Hard
Айдана Альжанова
Used 3+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Какое из данных уравнений не является квадратным?
- х2 +2х – 8= 0;
4х2 + х = 4х – 2;
3 + х2 = 0;
х2 = (х – 2)(х + 1).
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Найдите коэффициенты a, b и c квадратного уравнения – 2х2 + х + 7 = 0.
1, - 2, 7;
- 2, 1, 7;
0, - 2, 7;
другой ответ.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите уравнение, дискриминант которого равен 49.
5х2 + 3х + 2 = 0;
2х2 – 3х – 5 = 0;
3х2 – 3х – 7 = 0;
2х2 – 3х + 5 = 0.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Решите уравнение 5х2 – 9х – 2 = 0.
2 и - 0,2;
корней нет;
- 2 и 0,2;
другой ответ.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Найдите сумму корней уравнения 4х2 – х + 12 = 0.
- 0,25;
корней нет;
0,25;
другой ответ.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
При каких x верно равенство (2х - 3)2 = (х + 2)2?
1/3 и -5
5
1/3 и 5
другой ответ
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