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-1+8x-16x^2=0
a = -16; b = 8; c = -1;
Δ = b2-4ac
Δ = 82-4·(-16)·(-1)
Δ = 0
Delta is equal to zero, so there is only one solution to the equation
Stosujemy wzór:$x=\frac{-b}{2a}=\frac{-8}{-32}=1/4$
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