
Persamaan kuadrat dan SPLDV
Authored by Norhaidah Waty
Mathematics
3rd Grade
Used 8+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika x1 dan x2 merupakan akar-akar dari persamaan kuadrat x2+3x-1=0, nilai dari x12 + x22 adalah ....
2
3
6
9
11
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui persamaan kuadrat x2 - 2x + 2a + 5 = 0 mempunyai dua akar sama (kembar). Nilai a yang memenuhi adalah ....
-2
-1
0
1
2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Persamaan kuadrat yang mempunyai akar-akar -2 dan 5 adalah ....
x2 + 3x - 10 = 0
x2 - 3x - 10 = 0
x2 + 2x - 7 = 0
x2 - 2x + 10 = 0
x2 - 2x + 5 = 0
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui persamaan kuadrat 4x2 + 5x - 2 = 0. Persamaan kuadrat baru yang mempunyai akar-akar dua kali akar-akar persamaan kuadrat yang diketahui adalah ....
x2 + 5x + 8 = 0
x2 - 10x + 6 = 0
2x2 + 5x - 4 = 0
2x2 + 5x + 4 = 0
2x2 + 10x + 4 = 0
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui x1 dan x2 merupakan akar-akar persamaan kuadrat 2x2 + 3x + 5 = 0. Persamaan kuadrat baru yang mmepunyai akar-akar (x1 + 2) dan (x2 + 2) adalah ....
x2 - x - 9 = 0
x2 - x + 1 = 0
2x2 - 2x - 1 = 0
2x2 - 5x - 7 = 0
2x2 - 5x + 7 = 0
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Akar-akar persamaan kuadrat 3x2 + 4x - 6 = 0 adalah x1 dan x2. Nilai (3x12 x2 + 3x1x22) adalah ....
-8
-4
0
5
8
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui persamaan kuadrat ax2 - x + 2a + 3 = 0 mempunyai akar-akar yang saling berkebalikan. Nilai a yang memenuhi adalah ...
-3
-1
3
5
6
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