Question

(x+y)(4x-5y)-(x+y)(2x+3y)​

Answer 1

(x+y)(4x-5y)-(x+y)(2x+3y)

(x+y)[4x-5y-2x-3y]

(x+y)(2x-8y)

2(x+y)(x-4y)

As nothing is mentioned in the question therefore this is the most appropriate answer I guess!!

Hope this would help!