Question

Factorize each of the following expression:
p²q² − p⁴q⁴

Answer 1

$$\begin{gathered} p^2{q}^2-p^4{q}^4 \\ =p^2{q}^2(1-p^2{q}^2) \\ =p^2{q}^2[1-(pq{)}^2] \\ =p^2{q}^2(1-pq\left)\right(1+pq) \end{gathered}$$