\(\left(8x-3\right)\left(3x+2\right)-\left(4x+7\right)\left(x+4\right)+\left(2x+1\right)\left(1-5x\right)=-33\)
\(pt\Leftrightarrow3x\left(8x-3\right)+2\left(8x-3\right)-\left(x\left(4x+7\right)+4\left(4x+7\right)\right)+\left(2x+1\right)-5x\left(2x+1\right)+33=0\)
\(\Leftrightarrow24x^2-9x+16x-6-\left(4x^2+7x+16x+28\right)+2x+1-10x^2-5x+33=0\)
\(\Leftrightarrow24x^2-9x+16x-6-4x^2-7x-16x-28+2x+1-10x^2-5x+33=0\)
\(\Leftrightarrow10x^2-19x=0\Leftrightarrow x\left(10x-19\right)=0\)
\(\Rightarrow\left[{}\begin{matrix}x=0\\10x-19=0\end{matrix}\right.\)\(\Rightarrow\left[{}\begin{matrix}x=0\\x=\dfrac{19}{10}\end{matrix}\right.\)
