Question

Factorize each of the following expression:
p²q² − p⁴q⁴

Answer 1

\[p^2 q^2 - p^4 q^4 \]
\[ = p^2 q^2 (1 - p^2 q^2 )\]
\[ = p^2 q^2 [1 - (pq )^2 ]\]
\[ = p^2 q^2 (1 - pq)(1 + pq)\]