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5x-2x^2=63
We move all terms to the left:
5x-2x^2-(63)=0
a = -2; b = 5; c = -63;
Δ = b2-4ac
Δ = 52-4·(-2)·(-63)
Δ = -479
Delta is less than zero, so there is no solution for the equation
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