Question

3x²- 12=0

Equação do 2 grau na forma de Bhaskara

Answer 1

3x²-12=0

a=3 b=0 c=(-12)

∆=b²-4.a.c
∆=0²-4.3.(-12)
∆=0+144
∆=144
x= -b±✓∆/2.a
x= -0±✓144/2.3
x= -0±12/6
x'= -0+12/6= 12/6= 2
x"= -0-12/6= -12/6= -2

S={2,-2}