205² evaluate by applying identity algebraic expression
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0
Answer:
42025
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Answer:
(205)²
=(200+5)(200+5)
=(a+b)(a+b)=(a+b)²
=a²+b²+2ab
=a=200,b=5
=(200)²+(5)²+2(200)(5)
=40000+25+2000
=42025
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