(2x+1)(-4x+5)-(-5x+3)(2x+1)=0


Sagot :

(2x+1)(-4x+5)-(-5x+3)(2x+1)=0
(2x+1)(-4x+5-(-5x+3))=0
(2x+1)(-4x+5+5x-3)=0
(2x+1)(x+2)=0
2x+1=0 Ou. x+2=0
2x=-1 Ou. x=-2
x=-1/2. Ou. x=-2