Question

2$x^{2}$+6x=0.

Answer 1

2x²+6x=0

a = 2

b = 6

c = 0

_______________

Δ = b² - 4 . a . c

Δ = 6² - 4 . 2 . 0

Δ = 36 + 0

Δ = 36

_______________

x = ( -b +- √Δ) / 2 . a

x = ( -6 +- √36) / 2 . 2

x = (-6 +- 6) / 4

x' = (-6 + 6) / 4

x' = 0/4

x' = 0

x'' = (-6 - 6) / 4

x'' = -12/4

x'' = -3

Resposta: 0 e -3.