이차방정식 문항

이차방정식 문항

10th Grade

8 Qs

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이차방정식 문항

이차방정식 문항

Assessment

Quiz

Mathematics

10th Grade

Practice Problem

Hard

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8 questions

Show all answers

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