
PERSAMAAN KUADRAT(matcyber 17-31)
Quiz
•
Physics
•
10th Grade
•
Hard
Mr yustinus
Used 1+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Soal Nomor 17
Jika akar-akar persamaan kuadrat 3x2+6x+k+2=0 adalah A dan B, serta diketahui A3+B3=12, maka nilai k=⋯⋅
-16
-12
-8
8
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Soal Nomor 18
Persamaan kuadrat dari x2−4x−6=0 mempunyai akar-akar m dan n dengan ketentuan m<n. Nilai dari n−m adalah ⋯⋅
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Soal Nomor 19
Persamaan kuadrat x2−2x−5=0 memiliki akar-akar p dan q. Nilai dari (p2−q2)2 adalah
24
48
72
96
120
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Akar-akar dari 2x2−6x−p=0 adalah x1 dan x2. Jika x1−x2=5, nilai p adalah.....
-8
-6
4
6
8
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
-12
-6
-4
6
12
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Persamaan kuadrat (k+2)x2−(2k−1)x+k−1 mempunyai akar-akar nyata dan sama. Jumlah kedua akar persamaan tersebut adalah
9/8
8/9
5/2
2/5
1/5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
9x2 -2x+1=0
9x2 +2x+1=0
9x2 -2x-1=0
9x2 +2x-1=0
9x2 -2x-1=0
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