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Persamaan Kuadrat

Authored by RAHMAWATI kakak

Mathematics

2nd Grade

CCSS covered

Used 4+ times

Persamaan Kuadrat
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25 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Bentuk umum persamaan kuadrat adalah ...

 ax3+bxc=0 , a0ax^3+bx-c=0\ ,\ a\ne0 

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

 ax2+bx+c=0 , a=0ax^2+bx+c=0\ ,\ a=0 

 ax2bx+c=0 , a=0ax^2-bx+c=0\ ,\ a=0 

 ax+bx+c=0 , a =0ax+bx+c=0\ ,\ a\ =0  

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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  

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

3.

MULTIPLE CHOICE QUESTION

3 mins • 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  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Akar-akar dari persamaan kuadrat  x2+x56=0x^2+x-56=0 adalah ....

 x=14x=-14  atau x=4x=4  

 x=28x=-28  atau x=2x=-2  

 x=8x=-8  atau x=7x=7  

 x=7x=-7  atau x=8x=8  

 x=4x=-4  atau  x=14x=-14  

5.

MULTIPLE CHOICE QUESTION

3 mins • 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\}  

 {3, 10}\left\{3,\ 10\right\}  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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

 2-2  

 3-3  

1

4

7

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Diketahui persamaan kuadrat  x2+6x27=0x^2+6x-27=0   .   Nilai  x1+x2=...x_1+x_2=...  

 27-27  

 6-6  

 66  

 99  

 2727  

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