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2x^2=50x-400
We move all terms to the left:
2x^2-(50x-400)=0
We get rid of parentheses
2x^2-50x+400=0
a = 2; b = -50; c = +400;
Δ = b2-4ac
Δ = -502-4·2·400
Δ = -700
Delta is less than zero, so there is no solution for the equation
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