Question

Factories 1-a² + 2ab-b?​

Answer 1

Step-by-step explanation:

We have been given the expression:-

= 1 - a² - b² + 2ab

We can re-write it as:-

= 1 - (a² + b² - 2ab)

Using the identity - a² + b² - 2ab = (a - b)²

= 1 - ( a - b )²

Re - write it as:-

= (1)² - ( a - b )²

Using the identity - a² - b² = ( a + b ) ( a - b )

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

❣️⭐ Hope it helps you dear...⭐⭐❣️❣️