TÌM X: ( x-2 )( x^2+3x-2)-x^3=-8 ( 2x+1) . ( 3x-2)= ( 5x-8)( 2x-1) 2x( x-3)+5( x-3)=0 2x^3+ 6x^2= x^2+3x x^2( 2x-1)= 6x -3

(x-2)(x^2+3x-2)-x^3=-8
(2x+1)(3x-2)=(5x-8)(2x-1)
2x(x-3)+5(x-3)=0
2x^3+6x^2=x^2+3x
x^2(2x-1)=6x-3