
이차방정식 문항
Quiz
•
Mathematics
•
10th Grade
•
Hard
염사무엘 염사무엘
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
다음 중 이차방정식의 근의 공식을 올바르게 나타낸 것은?
x = (b ± √(b^2 - 4ac)) / 2a
x = (-b ± √(b^2 - ac)) / 2a
x = (-b ± √(b^2 + 4ac)) / 2a
x = (-b ± √(b^2 - 4ac)) / 2a
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
이차방정식 2x^2 - 5x + 2 = 0의 근은?
x = 1/3, 2
x = 1/2, 3
x = 1, 2
x = 1/2, 2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
이차방정식 x^2 - 4x + 4 = 0의 판별식은?
0
-4
4
2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
이차방정식의 근이 모두 실수일 때 판별식의 값은?
음수
1 이상
2 이상
0 이상
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
이차방정식 x^2 + 6x + 9 = 0의 근은?
-3
-2
0
-4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
이차방정식 x^2 - 7x + 12 = 0의 근은?
x = 3, 4
x = 2, 6
x = 4, 5
x = 1, 12
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
이차방정식의 근이 중근을 가질 때 판별식의 값은?
0
1
2
3
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
다음 이차방정식의 근을 구하시오: x^2 - 5x + 6 = 0
x = 2, 3
x = 1, 6
x = 3, 4
x = 2, 4
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