Question

what is the simplified form of (p-q)'2​

Answer 1

Answer:

p^2 + 2pq - q^2

by property

(a-b)^2 = a^2 + 2ab - b^2

Answer 2

Answer:

p^2+q^2-2pq

Step-by-step explanation:

(p-q) (p-q)

p^2-pq-pq+q^2

p^2+q^2-2pq