Evaluate by using the identity (a+b)2 = a2 + 2ab + b2
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Answer:
2,80,900
Step-by-step explanation:
a+b=530=500+30
(a+b)^2= (500+30)^2
=a^2+ 2ab + b^2
= 500^2+2*500*30+30^2
=250000+30000+900
= 280900
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