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8n^2-8n=-5
We move all terms to the left:
8n^2-8n-(-5)=0
We add all the numbers together, and all the variables
8n^2-8n+5=0
a = 8; b = -8; c = +5;
Δ = b2-4ac
Δ = -82-4·8·5
Δ = -96
Delta is less than zero, so there is no solution for the equation
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