Tolong jawab ya Faktorkan ((p+q)²-(p-q)²

( p + q)(p +q) - (p-q)(p+q)
= p^2 + pq+pq +q^2 - (p^2 +pq-pq - q^2)
= p^2 +2pq+q^2 - (p^2 - q^2)
= p^2 +2pq +q^2 - p^2 - q^2
= p^2 - p^2 + q^2 - q^2 +2pq
= 2pq

= (p+q)² - (p-q) ²
= (p+q)(p+q)- (p-q) (p-q)
= (2p+pq+pq+2q)-(2p-pq-pq-2q)
= (2p+2pq+2q)-(2p-2q)
= 2p-2p+2pq+2q-2q
= 2pq
maaf Kali salah