Akar-akar dari persamaan x2 + 3x – 28 = 0 adalah…

PENILAIAN PERSAMAAN KUADRAT

Quiz
•
Mathematics
•
9th Grade
•
Medium
Bambang Winarto
Used 5+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
4 dan 7
4 dan -7
-4 dan 7
-4 dan -7
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jika a dan b merupakan akar-akar dari x2 – 15x + 50 = 0, maka nilai a dan b itu adalah…
5 dan 10
-5 dan 10
5 dan -10
-5 dan -10
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diketahui p dan q adalah akar-akar dari 2x2 – 2x – 24 = 0, berapa nilai p dan q itu?
3 dan 4
-3 dan 4
3 dan -4
-3 dan -4
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jika x1 dan x2 diketahui sebagai akar-akar dari persamaan
x2 + 5x – 24 = 0, maka x1 + x2 adalah....
-1
-3
-5
-7
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jika akar-akar dari 2x2 – 20x + 32 = 0 adalah x1 dan x2, maka x1 x x2 hasilnya adalah…
16
-8
8
-16
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Berapakah nilai yang paling mungkin dari (4r-2s) jika r serta s adalah akar-akar persamaan x2 – 14x + 48 = 0
4
8
16
24
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Apabila akar-akar persamaan kuadrat 3x2 – 6x – 9 = 0 dikalikan hasilnya adalah…
3
1/3
-1/3
-3
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