Question

Resolver por formula general 9x2 - 36x + 31 =0​

Answer 1

Respuesta:

x₁ = 2.75

x₂ = 1.25

Explicación paso a paso:

a = 9  ;  b = - 36  ;  c = 31

x₁,₂  =  - ( - 36 ) ± √ ( - 36 )² - 4 ( 9 ) ( 31 ) / 2 ( 9 )

x₁,₂ =  36 ± √ 1296 - 1116 / 18

x₁,₂ = 36 ± √ 180 / 18

x₁,₂ = 36 ± 13.42 / 18

x₁ = 36 + 13.42 / 18

x₁ = 49.42/18

x₁ = 2.75

x₂ = 36 - 13.42/18

x₂ = 22.58/18

x₂ = 1.25