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8x^2+72x+162=0

a = 8; b = 72; c = +162;

Δ = b^{2}-4ac

Δ = 72^{2}-4·8·162

Δ = 0

Delta is equal to zero, so there is only one solution to the equation

Stosujemy wzór:$x=\frac{-b}{2a}=\frac{-72}{16}=-4+1/2$

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