Find the sum of zero
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hello where is 0 there is no 0
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=> 2s² - (1+2√2)s + √2=0
=> 2s² - s - 2√2s + √2=0
=> s(2s-1)-√2(2s-1) = 0
=> (s-√2)(2s-1) = 0
=> s=√2,1/2
=> sum of roots = √2 + 1/2 = (2√2+1)/2
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