Question

(a + b)² + (a - b)²​

Answer 1

Answer:

->Here we Have (a+b) ² -(a-b) ²

->we have equation for(a+b)² = a² + 2ab + b²

->we have equation for(a-b)² = a² - 2ab + b²

->so we can use it and we write below step

->(a² + 2ab + b² )-( a² - 2ab + b² )

->after open the braces we got,

->a² + 2ab + b² - a² +2ab - b²

->2ab+2ab =4ab

->so based on above simplification answer is 4ab .

Answer 2

Answer:

Solution….

…..(a+b)²-(a-b)²

…..a²+b²+2ab - (a²+b²-2ab)

…..a²+b²+2ab -a²-b²+2ab

…..2ab+2ab

…..4ab..Ans……

Step-by-step explanation:

I hope this helps you