1: \(\Leftrightarrow2\left(x-2\right)-5\left(x-1\right)=3\left(x+3\right)\)
=>2x-4-5x+5=3x+9
=>-3x+1=3x+9
=>-6x=8
hay x=-4/3
2: \(\Leftrightarrow5\left(2x+1\right)\left(x-3\right)-2=5x\left(2x+1\right)\)
\(\Leftrightarrow5\left(2x^2-6x+x-3\right)=10x^2+5x\)
\(\Leftrightarrow10x^2-25x-15-10x^2-5x=0\)
=>-30x=15
hay x=-1/2


