Answer:
Explanation:
(50 + 72i)^2 = 7200i - 2684
(50 - 72i)^2 = -7200i - 2684
= 7200i - 2684 - -7200i - 2684
= 7200i - 2684 + 7200i + 2684
= 14400i - 2684 + 2684
=
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