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-5x^2-5x=30
We move all terms to the left:
-5x^2-5x-(30)=0
a = -5; b = -5; c = -30;
Δ = b2-4ac
Δ = -52-4·(-5)·(-30)
Δ = -575
Delta is less than zero, so there is no solution for the equation
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