Question

x²-6x+8=0 qual a resposta?​

Answer 1

x² - 6x + 8 = 0

a= 1

b= -6

c= 8

Δ = b² - 4ac

Δ = (-6)² - 4 × 1 × 8

Δ = 36 - 32

Δ = 4

x = -b ± √Δ / 2a

x = 6 ± 2 / 2

x1 = 8/2 = 4

x2 = 4/2 = 2