Question

(с-7) (с-+7)​

Answer 1

Ответ:

(c-7)(c+7)= c^2-49

.........................................

Answer 2

It appears that you've provided an expression with "с" and "-7" and "с" and "+7," but it's not clear what operation you want to perform or what you're trying to accomplish with this expression.

If you want to simplify this expression or perform a specific mathematical operation, please provide more context or clarify your question, and I'll be happy to assist you further.