Persamaan Kuadrat 3

Persamaan Kuadrat 3

9th Grade

20 Qs

quiz-placeholder

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Persamaan Kuadrat 3

Persamaan Kuadrat 3

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

Created by

Adry Kurniawan

Used 27+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Diberikan persamaan berikut

1. x2 + 5x + 6 = 0

2. 2a2 – 8 = 0

3. 6m2 – 12 m = 0

4. p(p2 + 3p) = 0

Yang merupakan persamaan kuadrat adalah...

1,2,3

1,2,4

1,3,4

2,3,4

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Persamaan yang ekuivalen/sama dengan 3x(x + 4) = 2 + 5x adalah...

3x2 – 5x + 2 = 0

3x2 + 7x – 2 = 0

3x2 + 4x – 2 = 0

3x2 – 5x – 2 = 0

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Akar akar persamaan x2 + 5x – 24 = 0 adalah...

3 dan 8

– 3 dan – 8

3 dan – 8

– 3 dan 8

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Persamaan kuadrat baru yang akar-akarnya berlawan tanda dengan  x25x+6=0x^2-5x+6=0  

 x2+5x+6=0x^2+5x+6=0  

 x25x6=0x^2-5x-6=0  

 x25x6=0x^2-5x-6=0  

 x2+5x6=0x_{ }^2+5x-6=0  

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Nilai diskriminan dari persamaan kuadrat x2 – 4x - 5 = 0 adalah...

30

36

38

42

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Persamaan kuadrat yang akar-akarnya dua kali akar x2 – 3x – 10 adalah...

x2 – 4x – 20 = 0

x2 + 4x – 20 = 0

x2 - 6x – 40 = 0

x2 + 6x – 40 = 0

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Jika  x1x_1   dan  x2x_2   adalah akar-akar persamaan x2+x20=0x^2+x-20=0   dengan  x1x_1   >  x2x_2   , maka nilai   x1x2=....x_1-x_2=....   =...

-9

-1

1

9

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