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2c(3c-4)=-4c-5
We move all terms to the left:
2c(3c-4)-(-4c-5)=0
We multiply parentheses
6c^2-8c-(-4c-5)=0
We get rid of parentheses
6c^2-8c+4c+5=0
We add all the numbers together, and all the variables
6c^2-4c+5=0
a = 6; b = -4; c = +5;
Δ = b2-4ac
Δ = -42-4·6·5
Δ = -104
Delta is less than zero, so there is no solution for the equation
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