Gf intersectat cu Gg <=> f(x)=g(x)
2x-1=x la a doua -4x +4
x la a doua -4x-2x+4+1=0
x la a doua -6x+5=0
delta= b la a doua -4ac
a=1, b=-6, c=5
delta=36-20=16
x1=(6+4 )/2= 10/2=5
x2=( 6-4)/2= 2/2=1
pt x=5 => y=2 ori 5 -1= 10-1=9
pt x=1 => y= 2 ori 1 -1= 2-1=1
A(5,9) si B (1,1) sunt punctele de intersectie ale celor 2 functii
