Question

2° grau x2 + 12x + 32 = 0. ​

Answer 1

x²  + 12 + 32 = 0

Δ = 12² - 4 x 1 x 32

Δ = 144 - 128

Δ = 16

x = -12±√16 / 2

x¹ = -12 + 4 / 2 = - 4

x² = -12 - 4 / 2 = -8

Answer 2

x² + 12x + 32=0

a:1

b:12

c:32

∆=b²-4*a*c

∆= 12² - 4*1*32

∆= 144 - 128

∆= 16

x: -b±√∆ = -12±√16= -12 ±4

2*a 2*1 2

x' : -12+4: -8 : -4

2 2

x": -12-4 : -16: -8

2 2

x' = -4 e x" = -8

Boa sorte

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