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2(s^2-8s+16)+4=0
We multiply parentheses
2s^2-16s+32+4=0
We add all the numbers together, and all the variables
2s^2-16s+36=0
a = 2; b = -16; c = +36;
Δ = b2-4ac
Δ = -162-4·2·36
Δ = -32
Delta is less than zero, so there is no solution for the equation
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