Ответ:
Пошаговое объяснение:
1.) (0,9m^3+11n)^2=0.81m^6+19.8m³n+121n²
2.) (0,1-n)^2=0.01-0.2n+n²
3.) (8m^3+1,3n^3)^2=64m^6+20.8m³n³+1.69n^6
4.) (9+1,1n)^2=81+19.8n+1.21n²
5.) (20-0.9m^3)^2=400-36m³+0.81m^6
6.) (2m^3-1,1n^2)^2=4m^6-4.4m³n³+1.21n^4
7.) (0,5m^3+0,9n^3)^2=0.25m^6+0.9m³n³+0.81n^6
8) (9+0,1a^2)^2=81+1.8a²+0.01a^4