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(3x^2)-18x=-39
We move all terms to the left:
(3x^2)-18x-(-39)=0
We add all the numbers together, and all the variables
3x^2-18x+39=0
a = 3; b = -18; c = +39;
Δ = b2-4ac
Δ = -182-4·3·39
Δ = -144
Delta is less than zero, so there is no solution for the equation
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