
Кв урав
Authored by Асхат Капжапаров
Mathematics
8th Grade
Used 3+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Запишите квадратное уравнение, у которого первый коэффициент 3, второй коэффициент 8, свободный член -7
3х+8х2-7=0
3х2+8х-7=0
3х2+8-7х=0
3х2+7-7х=0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Запишите приведенное квадратное уравнение, у которого второй коэффициент 4, свободный член -3.
х2+4х-3
4х-3=0
х2+4х-9=0
х2+4х+3=0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Запишите неполное квадратное уравнение, у которого первый коэффициент равен 2, второй коэффициент равен 7. Найдите его корни.
2х+7х2=0; x1= 0; x2=3,5
2х2+7х=0; x1= 0 x2=3,5
2х2+7х=0; x1=-3,5 x2=0
2х2+7х=0; x1=-3,5 x2=2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите значение дискриминанта D, если a= 3, b=1, c=-4
D= -47
D= 49
D= -49
D= 48
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
При каком условии полное квадратное уравнение имеет единственный корень?
D>0
D=0
D<0
D<1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Решите уравнение х2 +2х-3=0
3; -1
-3; 1
3; 1
3; -1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Какое из чисел является корнем уравнения 2х2 -11х+5=0?
2
-1
5
-5
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