Răspuns :
3x7+3x15+3x13 = 3x(7+15+13) = 3x35 = 105
201x(327)-201x(307)+201x23 = 201x(327-307+23) = 201x43 = 8643
201x(327)-201x(307)+201x23 = 201x(327-307+23) = 201x43 = 8643