(a-46) - Bab - 17b; (50 - 62 - (5a - 6)(5a + 6);
(9-86)(2b + 3) + (46 - 1)2;
+ (0,4 + C)
2) -9c2 + (3c + d)2 – d;
4) (76 - t)(t + 76) + (7b + t)”;
6) (11c + 3)2 - 2c(5,5c + 33).​

caramelka05    2   22.01.2021 09:22    2