
Квадратные уравнения и теорема Виета
Quiz
•
Mathematics
•
8th Grade
•
Easy
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Выберите квадратное уравнение, у которого первый коэффициент равен 3, второй коэффициент равен 5, а свободный член равен -1.
3х2 + 5х - 1 = 0;
3х + 5х2 - 1 = 0;
3х2 - 5х - 1 = 0;
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Неполное квадратное уравнение - это уравнение, в котором:
старший коэффициент равен нулю;
средний коэффициент равен нулю;
средний коэффициент и (или) свободный член равен нулю.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Если D >0, то квадратное уравнение имеет:
1 корень;
2 корня;
не имеет корней.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Выберите корни неполного квадратного уравнения х2 - 16 = 0:
- 4 и 4;
- 8 и 8;
- 4 и 0.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Выберите приведенное квадратное уравнение:
6х2 - 6х + 1 = 0;
2х2 + х - 8 = 0;
х2 - 2х + 3 = 0;
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Определите квадратное уравнение, произведение корней которого равно 5:
х2 - 5х - 8 = 0;
х2 - 8 х - 5 = 0;
х2 - 8х + 5 = 0;
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Используя теорему, обратную теореме Виета, выберите числа, являющиеся корнями уравнения х2 - 7 х + 6 = 0:
-1 и 6;
1 и 6;
-1 и -6.
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