Question

Помогите пожалуйста!!!!!

Answer 1

1. (9+a)²= 81+18a+a²
2. (b-c)²=b²-2bc+c²
3. (0,5-2m)= 0,25-2m+4m²
4. (3v+5c)²=9v²+30vc+25c²
5. (d²+0,6x³)²= d⁴+1,2d²x³+0,36x^6

Answer 2

81+18а+а^2
b^2-2bc+c^2
0,25-2m+4m^2
9v+30vc+25c^2
d^4+1,2d^2x^3+0,36x^6