Question

( a +b) (a? - ab + b) = a +b​

Answer 1

Ответ:

-b(a-1)

ответ проверенный

Answer 2

The expression you've provided, (a + b)(a? - ab + b) = a + b, seems to contain some unusual symbols. I'm not sure what you mean by "a?" in the expression. If you intended to use a different symbol or operator, please clarify, and I'd be happy to help you simplify the expression or answer any questions you have.