\(\left(2x+1\right)\left(x-3\right)^2-\left(2x-1\right)\left(x-5\right)^2=0\)
\(\Leftrightarrow\left(2x-1\right)\left(x^2-6x+9\right)-\left(2x-1\right)\left(x^2-10x+25\right)=0\)
\(\Leftrightarrow2x^3-12x^2+18x-x^2+6x-9-\left(2x^3-20x^2+50x-x^2+10x-25\right)=0\)
\(\Leftrightarrow2x^3-13x^2+24x-9-2x^3+21x^2-60x+25=0\)
\(\Leftrightarrow8x^2-36x+16=0\)
\(\Leftrightarrow8x^2-32x-4x+16=0\)
\(\Leftrightarrow8x\left(x-4\right)-4\left(x-4\right)=0\)
\(\Leftrightarrow\left(x-4\right)\left(8x-4\right)=0\)
\(\Leftrightarrow\left[{}\begin{matrix}x-4=0\\8x-4=0\end{matrix}\right.\) \(\Leftrightarrow\left[{}\begin{matrix}x=4\\x=\dfrac{1}{2}\end{matrix}\right.\)
giúp mk vs ạ ai nhanh mk tick nha 
