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(C)=0.6C^2+4720
We move all terms to the left:
(C)-(0.6C^2+4720)=0
We get rid of parentheses
-0.6C^2+C-4720=0
a = -0.6; b = 1; c = -4720;
Δ = b2-4ac
Δ = 12-4·(-0.6)·(-4720)
Δ = -11327
Delta is less than zero, so there is no solution for the equation
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