x(x-1)=-15

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Solution for x(x-1)=-15 equation: 



x(x-1)=-15

We move all terms to the left:

x(x-1)-(-15)=0

We add all the numbers together, and all the variables

x(x-1)+15=0

We multiply parentheses

x^2-1x+15=0

a = 1; b = -1; c = +15;
Δ = b2-4ac
Δ = -12-4·1·15
Δ = -59
Delta is less than zero, so there is no solution for the equation

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