Đáp án:
$(x – 2)(5x + 3) = (3x – 8 )(x – 2)$
$=> 5x²+3x-10x-6=3x²-6x-8x+16$
$=> 5x²-3x²+3x-10x+6x+8x-6-16=0$
$=> 2x²+7x-22=0$
$=> 2x²+11x-4x-22=0$
$=> 2x(x+5,5)-4(x-5,5)=0$
$=> (x+5,5)(2x-4)=0$
$=> x+5,5=0$ và $2x-4=0$
$=> x=-5,5$; $x=2$
BẠN THAM KHẢO NHA!!!