3x^2+18=5x

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Solution for 3x^2+18=5x equation: 



3x^2+18=5x

We move all terms to the left:

3x^2+18-(5x)=0

a = 3; b = -5; c = +18;
Δ = b2-4ac
Δ = -52-4·3·18
Δ = -191
Delta is less than zero, so there is no solution for the equation

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