9x2+18x=-11

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Solution for 9x2+18x=-11 equation: 



9x^2+18x=-11

We move all terms to the left:

9x^2+18x-(-11)=0

We add all the numbers together, and all the variables

9x^2+18x+11=0

a = 9; b = 18; c = +11;
Δ = b2-4ac
Δ = 182-4·9·11
Δ = -72
Delta is less than zero, so there is no solution for the equation

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