1. Решение квадратного уравнения поэтапно
8th Grade
•10 Qs
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1. Решение квадратного уравнения поэтапно
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Дарья Орлова
FREE Resource
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10 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
10 mins • 1 pt
Запишите чему равен коэффициент а
x²-4x-21=0
2.
FILL IN THE BLANK QUESTION
10 mins • 1 pt
Запишите чему равен коэффициент b
x²-4x-21=0
3.
FILL IN THE BLANK QUESTION
10 mins • 1 pt
Запишите чему равен коэффициент с
x²-4x-21=0
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Выберите правильную формулу дискриминанта
D = 4a² - b²
D = b² + 4ac
D = b² - 4ac
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Выберите верную формулу нахождения корней у квадратного уравнения
x = (-b ± √D) / (2a)
x = (b ± √D) / (2a)
x = (b ± √D) / (2c)
x = (-b ± 2√D) / a
6.
FILL IN THE BLANK QUESTION
10 mins • 1 pt
Чему равен дискриминант
x²-4x-21=0
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Найдите х1 и х2
x²-4x-21=0
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