-2x^2+8x=8

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



-2x^2+8x=8

We move all terms to the left:

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

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

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{-8}{-4}=+2$

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