\(\text{ ( 2x - 3 )( 4x+ 7 ) - ( 8x + 1 )( x -3 ) + 2x = 5 }\)
\(\Leftrightarrow8x^2+14x-12x-21-8x^2+24x-x+3+2x=5\)
\(\Leftrightarrow27x-18=5\)
\(\Leftrightarrow27x=5+18\)
\(\Leftrightarrow27x=23\)
\(\Leftrightarrow x=\dfrac{23}{27}\)
Vậy phương trình có nghiệm \(x=\dfrac{23}{27}\) .