)
f(x)> 0 pt x>2 && f(x)<=0 pt x<=2 (strict crescatoare pt ca a>0)
g(x)>0 pt x<-2 && g(x)<=0 pt x>= -2 (strict descrescatoare pt ca a<0)
2)
4x-8=-3x-6 => x=2/7 && f(2/7)= -48/7 => punct intersectie M(2/7;-48/7)
3)
f(x)=0 => x=2
g(x)=0 => x=-2
4) 4x-8>=-3x-6 => x>=2/7