Persamaan Kuadrat

Persamaan Kuadrat

9th Grade

10 Qs

quiz-placeholder

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Persamaan Kuadrat

Persamaan Kuadrat

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

Isna Sani

Used 701+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Diantara persamaan berikut manakah yang bukan merupakan persamaan kuadrat.

2x(x+2)=302x\left(x+2\right)=30

3x28x16=03x^2-8x-16=0

15+2y=y215+2y=y^2

x8x+2=0x-\frac{8}{x}+2=0

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tentukan nilai

 a, b, ca,\ b,\ c   pada persamaan  2x(x+2)=302x\left(x+2\right)=30  

 a=2, b=2, c=30a=2,\ b=2,\ c=30  

 a=2, b=2, c=30a=2,\ b=2,\ c=-30  

 a=2, b=4, c=30a=2,\ b=4,\ c=-30  

 a=2, b=4, c=30a=2,\ b=4,\ c=30  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Diantara persamaan berikut, manakah yang memiliki akar-akar persamaan  x1=3x_1=3  dan  x2=5x_2=-5  ?

 x2+2x15=0x^2+2x-15=0  

 x22x15=0x^2-2x-15=0  

 2x2+x+15=02x^2+x+15=0  

 2x2+x15=02x^2+x-15=0  

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Salahsatu akar dari persamaan  x^2+9x+2m=0\  adalah -5. Maka berapakah nilai  mm  untuk memenuhi persamaan tersebut?

20

10

-20

-10

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Berapakah akar kembar yang memenuhi persamaan  x212x+36=0x^2-12x+36=0  

 (x12)2\left(x-12\right)^2  

 (x+6)2\left(x+6\right)^2  

 (x+12)2\left(x+12\right)^2  

 (x6)2\left(x-6\right)^2  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 (x+4)23(x+4)=10\left(x+4\right)^2-3\left(x+4\right)=10  

Tentukan akar-akar persamaan dari

6 dan 1

-6 dan 1

-6 dan -1

6 dan -1

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Ubah persamaan  \left(2p-1\right)\left(p+2\right)=p^2+16  ke dalam bentuk umum persamaan kuadrat!

 p2+3p18=0p^2+3p-18=0  

 p2+3p+18=0p^2+3p+18=0  

 p23p18=0p^2-3p-18=0  

 p23p+18=0p^2-3p+18=0  

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