Ta có :
\(\left(2x-3\right)^2-4x^2=0\)
\(\Leftrightarrow\left(2x-3\right)^2-\left(2x\right)^2=0\)
\(\Leftrightarrow\left(2x-3-2x\right)\left(2x-3+2x\right)=0\)
\(\Leftrightarrow-3\left(4x-3\right)=0\)
\(\Leftrightarrow4x-3=0\)
\(\Rightarrow x=\dfrac{3}{4}\)
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