express in standard form (2-3i)^2/(2-i)
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= (2 - 3i)² /( 2 - i)
= |2 - 3i| |2 + 3i| / (2 - i)
= 2² - (3i)² / (2 - i)
= (4 +3)/(2 - i)
= 7/(2 -i)
= 7(2 + i)/(2 - i)(2 + i)
= 7(2 + i)/ (2² - i²)
= 7(2 + i) / (2 + 1)
= (7/3)(2 + i)
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