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一元二次不等式-1

一元二次不等式-1

Assessment

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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