Selesaikan persamaan kuadrat berikut dengan metode rumus abcײ + 2× -11=0​

Penjelasan dengan langkah-langkah:

ײ + 2× -11=0

a = 1

b = 2

c = – 11

x₁,₂ = [-b ± ✓(b² – 4ac)]/2a

x₁,₂ = [-2 ± ✓(2² – 4(1)(-11)]/2(1)

x₁,₂ = [-2 ± ✓(4 + 44]/2

x₁,₂ = [-2 ± ✓48]/2

x₁,₂ = [-2 ± 16✓3]/2

x₁,₂ = -1 ± 8✓3

x₁ = – 1 + 8✓3

x₁ = – 1 – 8✓3

maaf kalau salah