X2-9y2-18y-9=9

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Solution for X2-9y2-18y-9=9 equation: 



X2-9X^2-18X-9=9

We move all terms to the left:

X2-9X^2-18X-9-(9)=0

We add all the numbers together, and all the variables

-8X^2-18X-18=0

a = -8; b = -18; c = -18;
Δ = b2-4ac
Δ = -182-4·(-8)·(-18)
Δ = -252
Delta is less than zero, so there is no solution for the equation

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