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(2x^2)-(5x-187)=0
We get rid of parentheses
2x^2-5x+187=0
a = 2; b = -5; c = +187;
Δ = b2-4ac
Δ = -52-4·2·187
Δ = -1471
Delta is less than zero, so there is no solution for the equation
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