
章節練習2.2
Authored by mathematics Aristo
Mathematics
9th - 12th Grade

AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
設 k 為常數。 若 2x² − 4x + (2 − k) = 0 的兩根的積是 −4,求 k 的值。
A. 6
B. −6
C. 10
D. −10
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若 α 和 β 是 x² −8x + 4 = 0 的兩個根,求 (2 + α)(2 + β) 的值。
A. −8
B. 8
C. 16
D. 24
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
設 k 為常數。若 k 和 4 − k 是 x² + 2ax + a + 6 = 0 的兩個根, 求 k 的值。
A. 2a
B. 2
C. −2a
D. −2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
設 k 為常數。若 α 和 β 是 x2 − 6x + (k−1) = 0 的兩個根,則 α2 + 6β =
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
設 k 為 常 數。 若 α 和 β 是 x2 − kx + 3 = 0的兩個根,下列各二次方程中,何者的根是 1+α 和 1+ β?
A. x2 + (k + 2)x + (k + 4) = 0
B. x2 − (k + 2)x + (k + 4) = 0
C. x2 + (k + 1)x + 4 = 0
D. x2 − (k + 1)x + 4 = 0
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports

Continue with Google

Continue with Email

Continue with Microsoft
or continue with
%20(1).png)
Apple
Others
Already have an account?