Question

6h elevado a 2 + h - 1 = 0

Answer 1

Resposta:

$S=\{-{1\over2},{1\over3}\}$

Explicação passo-a-passo:

6h² +h -1=0

a=6

b=1

c=-1

Δ=b²-4ac

Δ=1²-4(6)(-1)

Δ=1+24

Δ=25

$h={-b\pm\sqrt{\Delta} \over2a}={-1\pm\sqrt{25} \over2(6)}={-1\pm5\over12}\\ \\ h'={-1+5\over12}={4\over12}={1\over3}\\ \\ h"={-1-5\over12}=-{6\over12}=-{1\over2}$

Answer 2

Resposta:

6h² + h-1=0

Δ=1-4*6(-1)

Δ=1+24

Δ=25

h=-1±√25/2*6

h=-1±5/12

h'=-1+5/12

h'=4/12⇒h'=1/3

h"=-1-5/12

h"=-6/12⇒h"=-1/2

Explicação passo-a-passo: