
一元二次不等式-1
Interactive Video
•
Mathematics
•
10th Grade
•
Hard
Used 3+ times
FREE Resource
4 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
解不等式 x² - 4x + 3 > 0。
x > 3 或 x < 1
1 < x < 3
x ≥ 3 或 x ≤ 1
1 ≤ x ≤ 3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
解不等式 x² - 4x + 3 < 0。
x > 3 或 x < 1
1 < x < 3
x ≥ 3 或 x ≤ 1
1 ≤ x ≤ 3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
解不等式 -x² - 4x + 3 ≤ 0。
x ≥ -2 + √7 或 x ≤ -2 - √7
-2 - √7 ≤ x ≤ -2 + √7
x ≥ 2 + √7 或 x ≤ 2 - √7
2 - √7 ≤ x ≤ 2 + √7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
解不等式 2x² - 3x + 2 > 0。
無解
x 為任意實數
x > 2 或 x < 1/2
1/2 < x < 2
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