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Soal Bilangan Pangkat dan Persamaan Kuadrat

Authored by Yeny Hartanty

Mathematics

9th Grade

CCSS covered

Used 37+ times

Soal Bilangan Pangkat dan Persamaan Kuadrat
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20 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Penyelesaian persamaan kuadrat          x2+13x+30=0x^2+13x+30=0  adalah…

 {10,3}\left\{10,-3\right\}  

 {2,15}\left\{-2,-15\right\}  

 {2,15}\left\{2,-15\right\}  

 {3,10}\left\{-3,-10\right\}  

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Salah satu akar persamaan kuadrat  x29x+8=0x^2-9x+8=0 adalah…

 2-2  

 3-3  

1

4

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Jenis akar dari persamaan kuadrat  x26x+9=0x^2-6x+9=0   adalah…

Real dan berlainan

Imajiner

imajiner dan sama

real dan sama

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Jenis akar persamaan kuadrat  x27x+6=0x^2-7x+6=0   adalah…

real dan sama

imajiner dan berbeda

real dan berbeda

imajiner

5.

MULTIPLE CHOICE QUESTION

45 sec • 12 pts

Nilai a, b, dan ca,\ b,\ dan\ c dari persamaan kuadrat  2x26x+8=02x^2-6x+8=0  adalah…

 a=6, b=2, c=8a=-6,\ b=2,\ c=8  

 a=8, b=6, c=2a=8,\ b=-6,\ c=2  

 a=2, b=6, c=8a=2,\ b=-6,\ c=8  

 a=2, b=6, c=8a=-2,\ b=6,\ c=-8  

6.

MULTIPLE CHOICE QUESTION

45 sec • 12 pts

Akar persamaan kuadrat x² – x – 6 = 0 adalah ....

2 dan 3

-2 dan 3

2 dan -3

-2 dan -3

7.

MULTIPLE CHOICE QUESTION

45 sec • 12 pts

Akar-akar persamaan x² – 3x – 28 = 0 adalah ....

x = -7 atau x = -4

x = -7 atau x = 4

x = 7 atau x = -4

x = -7 atau x = -4

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