-8a^2-8a=2

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Solution for -8a^2-8a=2 equation: 



-8a^2-8a=2

We move all terms to the left:

-8a^2-8a-(2)=0

a = -8; b = -8; c = -2;
Δ = b2-4ac
Δ = -82-4·(-8)·(-2)
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$a=\frac{-b}{2a}=\frac{8}{-16}=-1/2$

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