Question

/2x + 1/ =0

Answer 1

\(\left|2x+1\right|=0\)

\(\Leftrightarrow2x+1=0\Leftrightarrow x==-\frac{1}{2}\)

Answer 2

/2x+1/=0

=>2x+1=0

2x=0-1

2x=-1

x=-1:2     Vậy x=-1/2

Answer 3

\(\left|2x+1\right|=0\)

\(\Leftrightarrow2x+1=0\Rightarrow2x=-1\Rightarrow x=-\frac{1}{2}\)

Answer 4

x=-\(\frac{1}{2}\)