Решить номер 9 а и б. Плиз .
9 а (72 :12) + (6*4) = 30 (72 :12 + 6)*4 = 48 72 :(12 + 6)*4 = 16 72 :(12 + 6*4) = 2 9б (120 - 40:5)*2 = 224 120 - (40:(5*2)) = 116 120 - 40:5*2 =104 (120 - 40):5*2 = 32