Mencari akar-akar dari persamaan kuadrat

Quiz
•
Mathematics
•
8th Grade
•
Hard
Yuniar astutik
Used 9+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tentukan akar-akar dari persamaan kuadrat berikut x²-7x+12=0
(x-4) dan (x-3)
(x+5) dan (x+1)
(x-3) dan (x-2)
(x+4) dan (x+2)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nilai a, b, dan c dari persamaan kuadrat 2x-3x²=0 secara berturut turut adalah
2, 3, 4
1, 2, 3
-3, 2, 0
4, 5, 6
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tentukan akar-akar dari persamaan kuadrat berikut x²-3x-10=0
(x+5) dan (x+2)
(x-5) dan (x+2)
(x-5) dan (x-2)
(x+2) dan (x+1)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hasil kali akar-akar persamaan kuadrat 2x²-4x-6 = 0 adalah
1
-2
3
-3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
persamaan kuadrat dari yang akar-akarnya 6 dan -4 adalah
x²-2x-24=0
x²+2x-24=0
x²-3x+24=0
x²+3x+24=0
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dari hasil pemfaktoran berikut :
1) 14x+7y = 7(2x²+y)
2) x²-25 = (x-25) (x-1)
3) 3x²+5x-12 = (3x-4) (x+3)
pernyataan yang benar adalah
1 dan 2
1 dan 3
2 dan 3
1, 2, 3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
jika x = -2 adalah akar-akar dari persamaan x²-3x-c = 0, maka nilai c adalah
5
-5
10
-10
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