
Persamaan Kuadrat dan Akar-Akarnya
Authored by Shofi Arba'ati
Mathematics
9th Grade

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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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