Question

Resolva a equacao x^2 - 6x - 16 =0

Answer 1

Resposta:

a = 1, b = - 6, c = - 16

delta = b^{2} - 4.a.c

delta = (-6)'' - 4.1.(-16)

delta = 36 + 64

delta = 100.

raiz de delta= 10, logo:

x= -b+_ raizdelta / 2.a

x= -(- 6 )+_ 10 / 2.1

x = 6 +_ 10 / 2

x* = 6 - 10/ 2

x* = - 4 / 2

x* = - 2

x** = 6 + 10 / 2

x** = 16 / 2

x** = 8

S = { - 2, 8 }

Answer 2

Resposta:

a = 1, b = - 6, c = - 16

delta = b^{2} - 4.a.c

delta = (-6)'' - 4.1.(-16)

delta = 36 + 64

delta = 100.

raiz de delta= 10, logo:

x= -b+_ raizdelta / 2.a

x= -(- 6 )+_ 10 / 2.1

x = 6 +_ 10 / 2

x* = 6 - 10/ 2

x* = - 4 / 2

x* = - 2

x** = 6 + 10 / 2

x** = 16 / 2

x** = 8

S = { - 2, 8 }