17+12 square root of 2
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Step-by-step explanation:
( 17 + 12 ) 2 . √2
Use ( a + b ) 2 = a2 + b2 + 2.a.b
(17)2 + (12)2 + 2.17.12 . √2
289 + 144 + 408 . √2
841 × √2
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