1. x^2+6x+9=2(x+3)
x^2+6x+9=2x+6
x^2+4x+3=0
Δ=16-12=4
x1=(-4+2)/2=-1
x2=(-4-2)/2=-3
2. 3(x-2)-x(x-2)=0
(x-2)(3-x)=0
x1=2 x2=3
1. x^2+6x+9=2(x+3)
x^2+6x+9=2x+6
x^2+4x+3=0
Δ=16-12=4
x1=(-4+2)/2=-1
x2=(-4-2)/2=-3
2. 3(x-2)-x(x-2)=0
(x-2)(3-x)=0
x1=2 x2=3