w(w+8)=-16

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Solution for w(w+8)=-16 equation: 



w(w+8)=-16

We move all terms to the left:

w(w+8)-(-16)=0

We add all the numbers together, and all the variables

w(w+8)+16=0

We multiply parentheses

w^2+8w+16=0

a = 1; b = 8; c = +16;
Δ = b2-4ac
Δ = 82-4·1·16
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

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

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