2x^2-1=-8

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Solution for 2x^2-1=-8 equation: 



2x^2-1=-8

We move all terms to the left:

2x^2-1-(-8)=0

We add all the numbers together, and all the variables

2x^2+7=0

a = 2; b = 0; c = +7;
Δ = b2-4ac
Δ = 02-4·2·7
Δ = -56
Delta is less than zero, so there is no solution for the equation

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