AJUTOR!!Multumesc anticipat

Răspuns:
[tex]\overrightarrow{AB}+\overrightarrow{AD}=\overrightarrow{AC}[/tex]
[tex]\overrightarrow{AO}=\displaystyle\frac{1}{2}\overrightarrow{AC}[/tex]
Atunci
[tex]\overrightarrow{AB}+\overrightarrow{AO}+\overrightarrow{AD}=\displaystyle\frac{3}{2}\overrightarrow{AC}}[/tex]
deci
[tex]x=\displaystyle\frac{3}{2}[/tex]
Explicație pas cu pas: