Question

solution plzzzz Guyssss​

Answer 1

Hey mate ,

Here is the factorisation

Here ,

1 - 2ab - a²- b²

= 1 - 2ab - ( a - b )²

= 1 - 2ab - a² - 2ab + b²

= 1 - 4ab - a² + b²

Hope it helps................!