eu scriu deodata raspunsul
1) (x-2)la2 +3x*(x+1)=0
xla2-x-x*(x+1)=-4
-2x=-4
x+-4/-2
x=2
2) (x+3)*(x-1)-(x la2 +2*x*3+3la2)=8
(x+3)*(x-1)-xla2 -6x-9=8
(x+3)*(x-1)-xla2 -6x=8+9
(x+3)*(x-1)-xla2-6x=17
x*x-x*1+3*X-3*1-Xla2 -6x=17
xla2-x+3*x-3-xla2-6x=17
-4x-3=17
-4x=17+3
-4x=20
x=20/-4
x=-5
a sat mai raspund mai incolo la urmatoareleca am obosit
putin