Using identities, evaluate 1022

1022 = (100 + 2)2 = (100)2 + 2(100)(2) + (2)2 [(a + b)2 = a2 + 2ab + b2 ] = 10000 + 400 + 4 = 10404

Using Identities, Evaluate 102square2

Using identities, evaluate 102²

102² = (100 + 2)²

= (100)² + 2(100)(2) + (2)² [(a + b)² = a² + 2ab + b² ]

= 10000 + 400 + 4 = 10404

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