Question

X²-12=4x formula de bhaskara

Answer 1

Resposta:

Explicação passo-a-passo:

x²-4x-12=0

a=1

b= -4

c= -12

Δ=b²-4.a.c

Δ=(-4)²-4.1.(-12)

Δ=16+48

Δ=64

x= -b±√Δ/2a

x= -(-4)±√64/2.1

x=4±8/2

x₁=4+8/2

x₁=12/2

x₁=6

x₂=4-8/2

x₂= -4/2

x₂= -2