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x^2=-8x-19
We move all terms to the left:
x^2-(-8x-19)=0
We get rid of parentheses
x^2+8x+19=0
a = 1; b = 8; c = +19;
Δ = b2-4ac
Δ = 82-4·1·19
Δ = -12
Delta is less than zero, so there is no solution for the equation
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