akar persamaan x.x +5x+3=0
Matematika
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Pertanyaan
akar persamaan x.x +5x+3=0
1 Jawaban
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1. Jawaban Anonyme
Bab Persamaan Kuadrat
Matematika SMP Kelas VIII
x² + 5x + 3 = 0
a = 1; b = 5; c = 3
x₁₂ = (-b +- √((b)² - 4 . a . c))/(2 . a)
x₁₂ = (-5 +- √(5² - 4 . 1 . 3)) / (2 . 1)
x₁₂ = (-5 +- √(25 - 12)) / 2
x₁₂ = (-5 +- √13) / 2
x₁ = (-5 + √13) / 2
x₂ = (-5 - √13) / 2