
Persamaan Kuadrat
Authored by Widyaningsih Devy
Mathematics
9th Grade
Used 2+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diketahui x1 dan x2 adalah akar-akar persamaan kuadrat x2 - 4x - 5 = 0. Nilai dari x12 + x22 adalah ...
24
26
28
30
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Diberikan persamaan kuadrat x2 - 3x + 5 = 0. Jika p adalah akar dari persamaan kuadrat itu, maka nilai dari p2 - 3p - 5 = ...
-10
0
3
5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Faktor dari x2 + 5x + 6=0 adalah ....
(x - 6)(x - 1)
(x + 6)(x + 1)
(x - 3)(x - 2)
(x + 3)(x + 2)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bentuk umum persamaan kuadrat adalah ... .
ax2 + bx + c = 0, a = 0
ax2 - bx - c = 0, a = 0
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Penyelesaian dari (2x - 5)2 - 81 = 0 adalah ... .
x = -7 dan x = -2
x = -2 dan x = 7
x = -7 dan x = 2
x = 2 dan x = 7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika salah satu dari persamaan kuadrat x2 + 3x + c = 0 adalah 2, maka nilai c yang memenuhi adalah ... .
-15
-10
15
20
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika nilai diskriminan = 0, maka jenis persamaan kuadrat tersebut adalah .... .
akar-akar realnya sama atau kembar
akar-akarnya real
akar-akar real yang berbeda
tidak memiliki akar-akar real
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