Question

(p+q)(p+q)-20(p+q)-125

Answer 1

(p+q)(p+q)-20(p+q)-125
p^2+pq+pq+q^2-20p-20q+125
p^2+2pq+q^2-20p-20q+125(answer)

Answer 2

(p+q)(p+q)-20(p+q)-125
p^2+pq+pq+q^2-20p-20q+125
p^2+2pq+q^2-20p-20q+125