-81=x^2

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Solution for -81=x^2 equation: 



-81=x^2

We move all terms to the left:

-81-(x^2)=0

We add all the numbers together, and all the variables

-1x^2-81=0

a = -1; b = 0; c = -81;
Δ = b2-4ac
Δ = 02-4·(-1)·(-81)
Δ = -324
Delta is less than zero, so there is no solution for the equation

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