Question

[Tung]

giai pt: \(\left(x-2011\right).\left(3x^2+2012\right)=0\)

Answer 1

[Princess Secret]

0

Answer 2

[kagamine rin len]

(x-2011).(3x^2+2012)=0

<=>x-2011=0 hoặc 3x^2+2012=0

<=>x=2011.      ,     3x^2=-2012<=>x^2=-2012/3 vô lý=>x vô nghiệm

S={2011}