Nilai a, b, dan c berturut-turut dari persamaan berikut 2x2 - 5x - 12 = 0
Evaluasi

Quiz
•
Mathematics
•
12th Grade
•
Hard
Nadia Sijabat
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
2, -5, dan 12
2, -5, dan -12
2, 5, dan -12
-2, 5, dan 12
2.
MULTIPLE CHOICE QUESTION
3 mins • 5 pts
Akar-akar atau himpunan penyelesaian persamaan kuadrat dari x2 - x - 20 = 0 adalah...
-4, dan 5
-5, dan 4
-4, dan -5
4, dan 10
3.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Himpunan penyelesaian kuadrat dari 3x2 + x - 4 = 0 adalah...
4∕3, dan -1
-4∕3, dan -1
-4∕3, dan 1
4∕3, dan 1/2
4.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Tentukan persamaan kuadrat jika diketahui akar-akar persamaan kuadrat yaitu –1 dan 3 adalah...
x2 + 2x - 3 = 0
x2 + 2x + 3 = 0
x2 - 6x - 5 = 0
x2 - 2x - 3 = 0
5.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Tentukan persamaan kuadrat yang jumlah dan hasil kali akar-akarnya yaitu 10 dan 16 adalah...
x2 - 10x + 16 = 0
x2 + 10x + 16 = 0
-x2 + 10x + 16 = 0
x2 + 10x - 16 = 0
6.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Diskriminan dari persamaan kuadrat 4x2 - 12x + 9 = 0 adalah...
12
9
0
-12
7.
MULTIPLE CHOICE QUESTION
10 mins • 10 pts
Jika akar-akar persamaan kuadrat x2 - 2x - 4 = 0 adalah x1 dan x2 maka nilai dari x12 + x22 = ...
8
-12
12
0
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