Question

$p4 - (p -q) {4}$
factorize this please and answer me
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Answer 1

$p^4-(p-q)^4 \\ \\ (p^2)^2-((p-q)^2)^2 \\ \\ (p^2+(p-q)^2)(p^2-(p-q)^2) \\ \\ (p^2+(p^2-2pq+q^2))(p^2-(p^2-2pq+q^2)) \\ \\ (p^2+p^2-2pq+q^2))(p^2-p^2+2pq-q^2) \\ \\ (2p^2-2pq+q^2)(2pq-q^2) \\ \\ (p-\frac{q(1+\iota)}{2})(p-\frac{q(1-\iota)}{2})(2p-q)q$

$Here, \ \iota=\sqrt{-1}$

$Hope this helps. \\ \\ \\ Thank you. :-)$