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5n-5n^2=3
We move all terms to the left:
5n-5n^2-(3)=0
a = -5; b = 5; c = -3;
Δ = b2-4ac
Δ = 52-4·(-5)·(-3)
Δ = -35
Delta is less than zero, so there is no solution for the equation
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