Question

x ao quadrado + 12x +32 =0​

Answer 1

x² + 12x +32 = 0

a = 1

b = 12

c = 32

Δ = b² - 4 . a . c

Δ = 12² - 4 . 1 . 32

Δ = 144 -128

Δ = 16

x = (-b +- √Δ) / 2 . a

x = (-12 +- √16) / 2 . 1

x = (-12 +- 4) / 2

x' = (-12 + 4)/ 2

x' = -8/2

x' = -4

x'' = (-12 - 4)/ 2

x''= -16/2

x'' = -8

Resposta: -8 e -4