⇔
−
8
x
−
4
=
0
hay
x
=
−
1
2
⇔
−
8
x
−
4
=
0
hay
x
=
−
1
2
a nhé ⚠⚠❕❔❗❓❤✔☕\(\widehat{MNP}\)
a
c
chúc mừng☠☢⚠✿
c nhé