Persamaan kuadrat yang akar-akarnya 15 dan -2 adalah…

ujian semester xi MTK

Quiz
•
Others
•
12th Grade
•
Hard
DARMA PERWIRA HASIBUAN
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5x2-9x-2 =0
5x2+9x-2 =0
5x2-2x+9 =0
5x2+2x+9 =0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Akar - akar dari persamaan kuadrat 2x2-6x-8=0 adalah …..
-1, 4
1, 4
2, -4
-2, 4
-2, -4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika x1 dan x2 merupakan akar-akar dari persamaan kuadrat 3x2-4x+2=0, nilai dari x1+x22-2x1x2 adalah …..
109
1
49
13
0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Persamaan kuadrat yang akar-akarnya -4 dan 6 adalah…..
x2-10x-24 = 0
x2-2x-24 = 0
x2+2x-24 = 0
x2+10x-24 = 0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fugsi f:R→R dinyatakan oleh fx=4x-5. Jika f-1 invers fungsi f, bentuk f-1(x) adalah ….
4x-5
x+5
x-54
x + 54
x - 45
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fungsi f:R→R dinyatakan oleh fx=x -32x + 4, x≠2. Jika f-1 invers fungsi f, nilai f-1(-2) adalah ….
-3
-1
1
3
5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika x1 dan x2 adalah akar-akar dari persamaan kuadrat x2 -4x+3 = 0, nilai dari x12 + x22 = …
-10
-6
3
8
10
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