a + b + c = 0 có 2 nghiệm là ?

lớp 9

Quiz
•
Mathematics
•
9th Grade
•
Easy

Ly Nguyễn
Used 1+ times
FREE Resource
31 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x1 = 1 ; x2 = -c/a
x1 = -1; x2 = c/a
x1= 1; x2 = c/a
x1 = -1; x2 = -c/a
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
hệ thức vi ét
x1 + x2 = -c/a
x1.x2 = b/a
x1 + x2 = -b/a
x1.x2 = c/a
x1 + x2 = c/a
x1.x2 = -b/a
x1 - x2 = 1
x1.x2 = c/
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
năm sáng tác bếp lửa
1966
1999
1963
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
năm sáng tác chiếc lược ngà
1974
1999
1966
1963
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
năm sáng tác đồng chí
1988
1999
1948
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
luận điểm khổ 3 bài đồng chí là
bức tranh đẹp về tình đồng chí
hình ảnh những người lính
biểu hiện về tình đồng chí
cơ sở hình thành tình đồng chí
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
luận điểm khổ thơ đầu bài bếp lửa
bếp lửa khơi nguồn cảm xúc
suy ngẫm về bà và bếp lửa
suy nghĩ về bếp lửa
bếp lửa và người bà
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