Question

Factorise a2-2ab-c+b2​

Answer 1

To factorize: a² - 2ab - c² + b²

Solution:

Now, a² - 2ab - c² + b²

= a² - 2ab + b² - c²

= (a - b)² - c²

= (a - b + c) (a - b - c),

which is the required factorization.

Answer 2

a² - 2ab - c + b²

a² - 2ab + b² - c

( a - b )² - c

( a - b + c ) ( a - b - c )