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(C)=4C^2-800C+51000
We move all terms to the left:
(C)-(4C^2-800C+51000)=0
We get rid of parentheses
-4C^2+C+800C-51000=0
We add all the numbers together, and all the variables
-4C^2+801C-51000=0
a = -4; b = 801; c = -51000;
Δ = b2-4ac
Δ = 8012-4·(-4)·(-51000)
Δ = -174399
Delta is less than zero, so there is no solution for the equation
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