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x^2-2+3x+8=0
We add all the numbers together, and all the variables
x^2+3x+6=0
a = 1; b = 3; c = +6;
Δ = b2-4ac
Δ = 32-4·1·6
Δ = -15
Delta is less than zero, so there is no solution for the equation
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