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-2y^2+y=1.9
We move all terms to the left:
-2y^2+y-(1.9)=0
We add all the numbers together, and all the variables
-2y^2+y-1.9=0
a = -2; b = 1; c = -1.9;
Δ = b2-4ac
Δ = 12-4·(-2)·(-1.9)
Δ = -14.2
Delta is less than zero, so there is no solution for the equation
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