Question

Using Appropriate Identities, Factorise: p^2-q^2-p-q​

Answer 1

Answer:(p+q)(p-q-1)

Step-by-step explanation

P² -Q² =(p+q)(p-q)

-p-q=-(p+q)

whole thing is (p+q)(p-q)-(p+q)

factor p+q=>(p+q)(p-q-1)