Question

b²-ab+b²+ab/(b+a)(b-a) ​

Answer 1

a=ba=b

a2=aba2=ab

a2−b2=ab−b2a2−b2=ab−b2

(a+b)(a−b)=b(a−b)(a+b)(a−b)=b(a−b)

a+b=ba+b=b

b+b=bb+b=b

2b=b2b=b

2=1