Himpunan penyelesaian persamaan kuadrat x2 - 2x - 15 = 0 adalah …
SCHOOL EXAMINATION UN MATH XII SOCIAL

Quiz
•
Mathematics
•
12th Grade
•
Hard
Royke Riandi
Used 1+ times
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(-5,-3)
(-5,3)
(-3,5)
(-2,5)
(3,5)
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Persamaan fungsi kuadrat 2x2 + 6x + p = 0 mempunyai akar-akar x1 dan x2 Jika x12 + x22 = 8 , maka nilai p adalah...
2
1
0
-1
-2
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika akar-akar persamaan kuadrat x2 - 3x + 5 = 0 adalah a dan b, persamaan kuadrat baru yang akar-akarnya (a + 2) dan (b + 2) adalah ...
x2 + 7x + 15 = 0
x2 - 7x + 15 = 0
x2 + x + 3 = 0
x2 + x - 3 = 0
x2 - x + 15 = 0
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Koordinat titik balik grafik fungsi kuadrat y = x2 - 6x + 5 adalah ...
(5,1)
(3,-4)
(1,5)
(-3,-4)
(-3,4)
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jumlah dua bilangan A dan B adalah 38. Jika jumlah 2 kali A dan B adalah 63, selisih A dan B adalah ...
8
10
12
14
24
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui sistem persamaan linear 4x + 3y = 850 dan 3x + 2y = 600, nilai x adalah …
25
50
75
100
125
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui x dan y memenuhi persamaan 2x + 3y = 4 dan 3x + 5y = 7. Nilai dari 6.x.y adalah….
12
8
-2
-6
-12
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