Răspuns :
a)2x+2=2(x+1)
b)2x+8=2(x+4)
c)4x-2=2(2x-1)
d)-2x-4=2(-x-2)
e)x+1=2(x/2+1/2)
f)-4x+1=2(-2x+1/2)
b)2x+8=2(x+4)
c)4x-2=2(2x-1)
d)-2x-4=2(-x-2)
e)x+1=2(x/2+1/2)
f)-4x+1=2(-2x+1/2)
in ordine
2(x+1)
2(x+2)
2(2x-1)
2(-x-2)
2(x/2+1/2)unde 2, factor comun forțat
2(-2x+1/2) idem, factor comun forțat