Question

Factorise (x-y)(x+y)+(x+y)²

Answer 1

Step-by-step explanation:

I explained it step by step ok

But sorry my hand writing is not so good

Answer 2

Answer:

2x(x+y)

Step-by-step explanation:

$(x - y)(x +y ) + {(x + y)}^{2} \\ = (x - y)(x + y) + (x + y)(x + y) \\ = (x + y)(x - y + x + y) \\ = 2x(x + y)$