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5x-3x^2=12
We move all terms to the left:
5x-3x^2-(12)=0
a = -3; b = 5; c = -12;
Δ = b2-4ac
Δ = 52-4·(-3)·(-12)
Δ = -119
Delta is less than zero, so there is no solution for the equation
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