f(x) x^2+2x bilangan asal {0,1,2,3} Tolong jawab dgn caranya yaaa, teriakasih;;)

f(0) = 0² + 2·0 = 0 + 0 = 0
f(1) = 1²+ 2·1 = 1 +  2 = 3
f(2) = 2² + 2·2 = 4+4 = 8
f(3) = 3² + 2·3 = 9 + 6 = 15
daerah hasil = {0,3,8,15}