Question

|x2 +x-4|=2
preciso dessa resposta

Answer 1

|x2 +x-4|=2

x^2+x-4=2

x^2+x-6=0

∆=√1-4.(-6)

∆=√25

∆=5

x1=-1+5/2

x1=4/2

x1=2

x2=-1-5/2

x2=-6/2

x2=-3

x^2+x-4=-2

x^2+x-2=0

∆=√1-4.(-2)

∆=√9

∆=3

x1=-1+3/2

x1=2/2

x1=1

x2=-1-3/2

x2=-4/2

x2=-2


s={-3,-2,1,2,}

espero ter ajudado!

boa noite!