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x(x-1)-(-1)=0
We add all the numbers together, and all the variables
x(x-1)+1=0
We multiply parentheses
x^2-1x+1=0
a = 1; b = -1; c = +1;
Δ = b2-4ac
Δ = -12-4·1·1
Δ = -3
Delta is less than zero, so there is no solution for the equation
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