Question

1-Выполните действия
1. (2a+1)²
2.(c-4p)²
3.(b+7)(b-7)

Answer 1

1. (2a+1)² = 4а²+4а+1
2.(c-4p)² = с²-8ср+16р²
3.(b+7)(b-7) = b²-49