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Dạng tong quát
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a
x
+
b
=
0
{\displaystyle ax+b=0}
Nghiem phuong trinh
edit
x
=
−
b
a
{\displaystyle x=-{\frac {b}{a}}}
Chung minh
edit
x
+
b
a
=
0
{\displaystyle x+{\frac {b}{a}}=0}
x
=
−
b
a
{\displaystyle x=-{\frac {b}{a}}}