(x)=-x^2+5x-18

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Solution for (x)=-x^2+5x-18 equation: 



(x)=-x^2+5x-18

We move all terms to the left:

(x)-(-x^2+5x-18)=0

We get rid of parentheses

x^2-5x+x+18=0

We add all the numbers together, and all the variables

x^2-4x+18=0

a = 1; b = -4; c = +18;
Δ = b2-4ac
Δ = -42-4·1·18
Δ = -56
Delta is less than zero, so there is no solution for the equation

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