\(\left(3x-1\right)^2-3x\left(3x+2\right)=0\)
<=> \(9x^2-6x+1-9x^2-6x=0\)
<=>\(-12x+1=0\)
<=> \(x=\frac{1}{12}\)
\(\left(3x-1\right)^2-3x\left(3x+2\right)=0\)
\(\Leftrightarrow9x^2-6x+1-9x^2-6x=0\)
\(\Leftrightarrow-12x+1=0\)
\(\Leftrightarrow-12x=0-1\)
\(\Leftrightarrow-12x=-1\)
\(\Leftrightarrow x=-1:-12\)
\(\Leftrightarrow x=\frac{1}{12}\)
\(\left(3x-1\right)^2-3x\left(3x+2\right)=0\)
\(\Leftrightarrow9x^2-6x+1-9x^2-6x=0\)
\(\Leftrightarrow9x^2-9x^2-6x-6x+1=0\)
\(\Leftrightarrow-12+1=0\)
\(\Leftrightarrow-12x=-1\)
\(\Leftrightarrow x=\frac{-1}{-12}\)
\(\Rightarrow x=\frac{1}{12}\)
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