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Persamaan Kuadrat

Authored by Lestari Siregar

Mathematics

9th - 10th Grade

CCSS covered

Used 78+ times

Persamaan Kuadrat
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Faktor dari  x2+x6=0x^2+x-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  

2.

MULTIPLE CHOICE QUESTION

30 sec • 12 pts

Akar-akar dari persamaan kuadrat  x2+7x+12=0x^2+7x+12=0 adalah ....

 x=1x=-1  atau x=12x=-12  

 x=2x=-2  atau x=6x=-6  

 x=3x=-3  atau x=4x=-4  

 x=3x=3  atau x=4x=4  

Tags

CCSS.HSA-REI.B.4B

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Akar-akar persamaan kuadrat dari 3x2 + 13x + 10 = 0 adalah ...

x1= 1 x_1=\ 1\ \ dan x2 = 10\ x_2\ =\ -10

x1= 1 x_1=\ 1\ \ dan x2 = 13x_2\ =\ -\frac{1}{3}

x1= 1 x_1=\ -1\ \ dan x2 = 3x_2\ =\ 3

x1= 1 x_1=\ -1\ dan x2 = 103x_2\ =\ -\frac{10}{3}

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Akar-akar dari persamaan kuadrat  x23x  4=0x^2-3x\ -\ 4=0 adalah ....

 x=4x=-4  atau x=1x=1  

 x=1x=-1  atau x=4x=4  

 x=3x=-3  atau x=4x=-4  

 x=3x=3  atau x=4x=4  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Jumlah akar-akar persamaan kuadrat x2+6x16=0x^2+6x-16=0 adalah ..... 

-16

-6

6

16

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Hasil kali akar-akar persamaan kuadrat 2x2+x 6=02x^2+x\ -6=0  adalah ....


 12\frac{1}{2}  

-3

12

-4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika akar - akar persamaan  6x2+12x+6=06x^2+12x+6=0  adalah  x1 dan x2x_{1\ }dan\ x_2  maka tentukanlah nilai  x1+x2  dan  x1 .  x2x_1+x_2\ \ dan\ \ x_1\ .\ \ x_2  !

 x1+ x2 =2 dan x1 .  x2 =6x_1+\ x_2\ =-2\ dan\ x_1\ .\ \ x_2\ =-6  

 x1+ x2 =2 dan x1 .  x2 =1x_1+\ x_2\ =-2\ dan\ x_1\ .\ \ x_2\ =1  

 x1+ x2 =2 dan x1 .  x2 =6x_1+\ x_2\ =2\ dan\ x_1\ .\ \ x_2\ =6  

 x1+ x2 = 1 dan x1 .  x2 =2x_1+\ x_2\ =-\ 1\ dan\ x_1\ .\ \ x_2\ =2  

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