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=0.03C^2-7C+600
We move all terms to the left:
-(0.03C^2-7C+600)=0
We get rid of parentheses
-0.03C^2+7C-600=0
a = -0.03; b = 7; c = -600;
Δ = b2-4ac
Δ = 72-4·(-0.03)·(-600)
Δ = -23
Delta is less than zero, so there is no solution for the equation
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