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x^2+8x=-169
We move all terms to the left:
x^2+8x-(-169)=0
We add all the numbers together, and all the variables
x^2+8x+169=0
a = 1; b = 8; c = +169;
Δ = b2-4ac
Δ = 82-4·1·169
Δ = -612
Delta is less than zero, so there is no solution for the equation
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