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PERSAMAAN KWADRAT

Authored by LESPITA TAMBUNAN

Mathematics

9th Grade

CCSS covered

Used 2+ times

PERSAMAAN  KWADRAT
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10 questions

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1.

MULTIPLE CHOICE QUESTION

5 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\}  

2.

MULTIPLE CHOICE QUESTION

5 mins • 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

5 mins • 1 pt

salah satu akar persamaan kwadrat  x2+3x10=0x^2+3x-10=0  

5

-5

-2

3

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diketahui persamaan kuadrat  2x212x8=02x^2-12x-8=0 .  Nilai  x1. x2=...x_1.\ x_2=...  

 4-4  

 44  

 6-6  

 66  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Akar-akar persamaan kuadrat dari  x2+5x+6=0x^2+5x+6=0  adalah ...

  x1=3 atau x2=2x_1=3\ atau\ x_2=2  

  x1=3 atau x2=2x_1=-3\ atau\ x_2=-2  

 x1=3 atau x2=2x_1=-3\ atau\ x_2=2  

 x1=3 atau x2=2x_1=3\ atau\ x_2=-2  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Tentukan nilai akar dari persamaan x²+9x+18=0

-6 dan 3

6 dan 3

-6 dan -3

6 dan -3

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

(x-5)(x+7)=0 berapa nilai dari x1 dan x2 ?

5 dan -7

-5 dan 7

-5 dan -7

5 dan 7

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