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X^2-8X=-65
We move all terms to the left:
X^2-8X-(-65)=0
We add all the numbers together, and all the variables
X^2-8X+65=0
a = 1; b = -8; c = +65;
Δ = b2-4ac
Δ = -82-4·1·65
Δ = -196
Delta is less than zero, so there is no solution for the equation
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