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Evaluate using the identity (a + b)2 = a2 + 2ab + b2(34)2 |
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Answer» 342 = (30 + 4)2 (a + b)2 = a2 + 2ab+ b2 Here a = 30, b = 4 (30 + 4)2 = (30)2 + 2 × 30 × 4 + (4)2 = 900 + 240 + 16 (34)2 = 1156 |
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