\(2\left(3x-2\right)+\left(x-3\right)^2=0\)
\(\Rightarrow2\left(3x-2\right)=\left(x-3\right)^2\)
\(\Rightarrow6x-4=x^2-9\)
\(\Rightarrow6x-x^2=4-9\)
\(\Rightarrow6x-x^2=-5\)
\(\Rightarrow...\)
pn tự lm nka, mk ms lp 7 ò
\(\Leftrightarrow6x-4+x^2-6x+9=0\)
\(\Leftrightarrow x^2+5=0\)
\(\Leftrightarrow x^2=-5\)(vô lý)
Vậy ptrình vô nghiệm