Question

1 - 2 a b minus A square minus b square​

Answer 1

hola mate....

1-2ab-a^2-b^2

then what u want...???

plzz clear ur question

Answer 2

So your question is

1 - 2ab - a² - b²

1 - ( 2ab + a² + b²)

1- ( a + b )²

by identity a² - b² = (a +b)(a - b)

(1 + a + b)( 1 - a - b)

Answer