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x(-4+x)=-26
We move all terms to the left:
x(-4+x)-(-26)=0
We add all the numbers together, and all the variables
x(x-4)-(-26)=0
We add all the numbers together, and all the variables
x(x-4)+26=0
We multiply parentheses
x^2-4x+26=0
a = 1; b = -4; c = +26;
Δ = b2-4ac
Δ = -42-4·1·26
Δ = -88
Delta is less than zero, so there is no solution for the equation
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