Question

Формула:(a+b)²=a²+2ab+b²
Решите:
1)(c+d)²=
2)1+2x+x²=
3)a²+8a+16=
4)(2p+q)²=
5)4a²-4a+1=

Answer 1

1) = c²+2cd+d²
2) = (1+x)²
3) = (a+4)²
4) = 4p²+4pq+q²
5) = (2a-1)²