Question

Como resolver a conta 2x²-12×-18=0 formula de bhaskara

Answer 1

S ={3}

2x²-12x-18 = 0 ÷2

x²-6x-9 = 0 a = 1, b = -6 e c = -9

∆ = b²-4ac

∆ = (-6)²-4.1.(-9)

∆ = 36-36

∆ = 0

-b+-√∆/2a

-(-6)+-√0\2

+6+-0\2

x¹ = 6/2 =3

x² = 6/2 = 3

S = {3}

Bom final de semana ❤️❤️

22/10/21