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X2-X=-56
We move all terms to the left:
X2-X-(-56)=0
We add all the numbers together, and all the variables
X^2-1X+56=0
a = 1; b = -1; c = +56;
Δ = b2-4ac
Δ = -12-4·1·56
Δ = -223
Delta is less than zero, so there is no solution for the equation
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