6s=-s^2-9

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Solution for 6s=-s^2-9 equation: 



6s=-s^2-9

We move all terms to the left:

6s-(-s^2-9)=0

We get rid of parentheses

s^2+6s+9=0

a = 1; b = 6; c = +9;
Δ = b2-4ac
Δ = 62-4·1·9
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$s=\frac{-b}{2a}=\frac{-6}{2}=-3$

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