Question

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(a+b)²
-(a - b)² ​

Answer 1

a2+2ab+b2 - (a2-2ab+b2)

a2+2ab+b2 - a2 +2ab - b2

=4ab

Answer 2

Answer: 4ab

Step-by-step explanation:

(a + b)² = a² + 2ab + b²

(a - b)² = a² - 2ab + b²

(a + b)² - (a - b)²

= a² + 2ab + b² - ( a² - 2ab + b²)

= a² + 2ab + b² - a² + 2ab - b²

= 4ab

Hop it helps you :)