

Теорема Виета
Interactive Video
•
Mathematics
•
8th Grade
•
Practice Problem
•
Medium
Татьяна Склярова
Used 1+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какое утверждение верно для приведенного квадратного уравнения x² + px + q = 0, если оно имеет корни x₁ и x₂?
x₁ + x₂ = p, x₁ · x₂ = q
x₁ + x₂ = -p, x₁ · x₂ = -q
x₁ + x₂ = -p, x₁ · x₂ = q
x₁ + x₂ = p, x₁ · x₂ = -q
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какие корни имеет квадратное уравнение x² - 3x + 2 = 0?
x₁ = -2, x₂ = -1
x₁ = 2, x₂ = 1
x₁ = 3, x₂ = -2
x₁ = -3, x₂ = 2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите корни квадратного уравнения x² - 15x + 36 = 0.
x₁ = 12, x₂ = 3
x₁ = -12, x₂ = -3
x₁ = 18, x₂ = 2
x₁ = -18, x₂ = -2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какое квадратное уравнение имеет корни x1 = -5 и x2 = 7?
x2 + 2x + 35 = 0
х2 - 2x - 35 = 0
x2 + 2x - 35 = 0
x2 - 2x + 35 = 0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Как можно преобразовать неприведенное квадратное уравнение в приведенное?
Разделить все члены уравнения на свободный член.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Используя теорему Виета для уравнения 67x2 - 105x - 172 = 0, чему равна сумма корней?
-105
67
105
-172
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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