Ответ:49² − 1400 = 2401 − 1400 = 1001.15² + 100 = 225 + 100 = 325.50² − 1500 = 2500 − 1500 = 1000.16² − 50 = 256 − 50 = 206.13² + 120 = 169 + 120 = 289.14² − 60 = 196 − 60 = 136.12² + 40 = 144 + 40 = 184.11² − 20 = 121 − 20 = 101.