Răspuns :
= 2+2*{2+2*[2+2*(2+2*2)]}
= 2+2*{2+2*[2+2*(2+4)]}
= 2+2*{2+2*[2+2*(6)]}
= 2+2*{2+2*[2+2*6]}
= 2+2*{2+2*[2+12]}
= 2+2*{2+2*[14]}
= 2+2*{2+2*14}
= 2+2*{2+28}
= 2+2*{30}
= 2+2*30
= 2+60
= 62
(2x+2)•2+2=
= 2(2x+2)+2
= 2(2x+2+1)
=2(2x+3)
= 2+2*{2+2*[2+2*(2+4)]}
= 2+2*{2+2*[2+2*(6)]}
= 2+2*{2+2*[2+2*6]}
= 2+2*{2+2*[2+12]}
= 2+2*{2+2*[14]}
= 2+2*{2+2*14}
= 2+2*{2+28}
= 2+2*{30}
= 2+2*30
= 2+60
= 62
(2x+2)•2+2=
= 2(2x+2)+2
= 2(2x+2+1)
=2(2x+3)