find square using identity (102)^2
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Answer:
10404
Step-by-step explanation:
( 102 )^2
(100+2)^2
identity = a^2 + b^2 + 2ab
here a = 100 and b = 2
= (100)^2 + (2)^2 + 2 × 100 × 2
= 10000 + 4 + 400
= 10404
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