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persamaan kuadrat kelas 9 smp

Authored by Sunarsi Lutfi

Mathematics

9th Grade

CCSS covered

Used 169+ times

persamaan kuadrat kelas 9  smp
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Bentuk umum persamaan kuadrat adalah ... .


ax2+bx+c=0, a0ax^2+bx+c=0,\ a\ne0

ax2bx+c=0, a=0ax^2-bx+c=0,\ a=0

ax2bx+c=0, a0ax^2-bx+c=0,\ a\ne0

ax2+bx+c=0, a=0ax^2+bx+c=0,\ a=0

2.

MULTIPLE CHOICE QUESTION

30 sec • 12 pts

Cara menentukan akar persamaan kuadrat ada tiga, kecuali ....

mengalikan dengan sekawannya

memfaktorkan

melengkapi kuadrat sempurna

rumus kuadratik (rumus abc)

Tags

CCSS.HSA-REI.B.4B

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Nilai a,b, dan c berturut-turut dari persamaan berikut 2x²-5x-12=0 adalah

2, 5 dan 12

2,-5 dan -12

2,-5 dan 12

2,5 dan -12

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 5x26x+2=05x^2-6x+2=0  koefisien x adalah ... .

6

5

2

-6

5.

MULTIPLE CHOICE QUESTION

30 sec • 12 pts

Faktor dari x2+5xx^2+5x adalah .... 

 x(x5)x\left(x-5\right) 

 x(x2+5)x\left(x^2+5\right)  

 x(x+5)x\left(x+5\right)  

 x(x+5x)x\left(x+5x\right)  

6.

MULTIPLE CHOICE QUESTION

30 sec • 12 pts

Faktor dari  x2+5x+6=0x^2+5x+6=0  adalah ....

 (x+2)(x3)=0\left(x+2\right)\left(x-3\right)=0  

 (x2)(x+3)=0\left(x-2\right)\left(x+3\right)=0  

 (x2)(x3)=0\left(x-2\right)\left(x-3\right)=0  

 (x+2)(x+3)=0\left(x+2\right)\left(x+3\right)=0  

Tags

CCSS.HSA-REI.B.4B

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Faktor dari  x2144=0x^2-144=0  adalah ....

 (x12)(x12)=0\left(x-12\right)\left(x-12\right)=0  

 (x+12)(x12)=0\left(x+12\right)\left(x-12\right)=0  

 (x+12)(x+12)=0\left(x+12\right)\left(x+12\right)=0  

 (x1)(x14)=0\left(x-1\right)\left(x-14\right)=0  

 (x+1)(x+14)=0\left(x+1\right)\left(x+14\right)=0  

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