Question

Factorise:
4a²-b²+2a+b​

Answer 1

Step-by-step explanation:

first arrange it:-

4a { }^{2} + 2a - b { }^{2} + b4a

2

+2a−b

2

+b

then make pair of two:-2a(a+1)-b(b+1)

hope it may be right.