Question

Evaluate square of each of the following 509

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Answer 1

Answer:

the answer is 259081 correct answer

Answer 2

Answer:

The given expression 5092 can be rewritten as (500+9)2 and we solve it as follows:

(500+9)2=(500)2+(9)2+(2×500×9)(∵(a+b)2=a2+b2+2ab)=250000+81+9000=259081

Hence, 5092=259081.