-8z-18=z^2

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Solution for -8z-18=z^2 equation: 



-8z-18=z^2

We move all terms to the left:

-8z-18-(z^2)=0

determiningTheFunctionDomain
-z^2-8z-18=0

We add all the numbers together, and all the variables

-1z^2-8z-18=0

a = -1; b = -8; c = -18;
Δ = b2-4ac
Δ = -82-4·(-1)·(-18)
Δ = -8
Delta is less than zero, so there is no solution for the equation

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