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Persamaan Kuadrat dan Akar-Akarnya

Authored by Shofi Arba'ati

Mathematics

9th Grade

Persamaan Kuadrat dan Akar-Akarnya
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Apa bentuk umum dari persamaan kuadrat?

ax^2 + bx + c = 0

ax^2 + b + c = 0

a + bx + c = 0

ax^2 + b = 0

2.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Tentukan koefisien x dari persamaan 2x² - 3x - 5.

-5

2

3

-3

3.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Apa konstanta dalam persamaan kuadrat 4x² - 2x + 1?

0

2

-1

1

4.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Tentukan akar-akar dari persamaan kuadrat x² - 5x + 6.

x₁ = 3, x₂ = 2

x₁ = 5, x₂ = 0

x₁ = 6, x₂ = -1

x₁ = 4, x₂ = 1

5.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Apa rumus untuk mencari akar-akar persamaan kuadrat?

x = (b ± √(b² + 4ac)) / (2a)

x = (-b ± 4√(b² - ac)) / (2a)

x = (-b ± √(b² - 4ac)) / (2a)

x = (b ± √(4ac - b²)) / (2a)

6.

MULTIPLE CHOICE QUESTION

45 sec • 5 pts

Jika a = 1, b = -4, dan c = 4, tentukan akar-akar persamaan kuadrat.

x = 2

x = -2

x = 0

x = 4

7.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Ubah bentuk persamaan kuadrat 3x² + 6x + 3 menjadi faktorisasi.

3(x - 1)²

3(x + 1)²

(3x + 3)(x + 1)

(x + 3)(3x - 1)

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