
Дискримінант квадратного рівняння
Quiz
•
Mathematics
•
6th Grade
•
Practice Problem
•
Medium
Hanna Kovalevska
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
За якою формулою визначають дискримінант рівняння ax2+bx+c=0:
D=b^2+4ac
D=b^2-ac
D=-b^2-4ac
D=b^2-4ac
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Назвіть коефіцієнти квадратного рівняння 2x^2+6x-1=0:
a=-2, b=-6, c= 1
a=2, b=-6, c= -1
a=-2, b=-6, c= -1
a=2, b=6, c= -1
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Як обчислюють дискримінант квадратного рівняння x^2 - 10x + 16=0:
D=10^2-4*1*(-16)
D=10^2-4*1*16
D=(-10)^2-4*1*(-16)
D=(-10)^2-4*1*16
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Для якого з даних квадратних рівнянь дискримінант обчислюють так D=5^2-4*1*(-6)
x^2-5x-6=0
x^2+6x-5=0
x^2+5x-6=0
x^2-5x+6=0
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Для рівняння х^2 +4х -21 = 0 чому дорівнює дискримінант?
68
-68
100
92
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Для рівняння -2х^2 -4х +6 = 0 чому дорівнює 2а?
4
-4
2
-2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Для рівняння 2х^2 +х -21 = 0 чому дорівнює -b?
2
1
-1
-21
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