Question

find (103)square by using identity?​

Answer 1

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find 103² by identity

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= 103²

= (103) × (103)

= ( 100 + 3 ) × ( 100 + 3 )

= 100 ( 100 + 3 ) + 3 ( 100 + 3 )

= 10000 + 300 + 300 + 9

= 10609

$distributive\: property$