А) 49+51= 100, 56+72= 128
б) 59-34= 25, 66-42= 24
в) 7^2+2^2= 53, 9^2+7^2= 130
г) (9+11)^2= 81+198+121= 400, (6+7)^2 = 36+84+49= 169
д) 5^2-4^2 = (5+4)(5-4)= 9
е) (5-4)^2 = 25-40+16= 1, (6-4)^2= 36-48+16= 4
ж) 4^3+3^3 = (4+3) (16-12+9) = 91, 5^3+2^3 = (5+2) (25-10+4) = 133
з) (13+7)^3 = 2197+3549+1911+343= 8000, (5+6)^3 = 125+450+540+216= 1331
и) 4^3-3^3 = (4-3) (16+12+9) = 37, 5^3-1^3 = (5-1) (25+5+1) = 124
к) (49-46)^3 = 117649-331338+311052-97336 = 27, (56-52)^3 = 175616-489216+454272-140608 = 64