(g+9)(g+9)=

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Solution for (g+9)(g+9)= equation: 



(g+9)(g+9)=

We move all terms to the left:

(g+9)(g+9)-()=0

We add all the numbers together, and all the variables

(g+9)(g+9)=0

We multiply parentheses ..

(+g^2+9g+9g+81)=0

We get rid of parentheses

g^2+9g+9g+81=0

We add all the numbers together, and all the variables

g^2+18g+81=0

a = 1; b = 18; c = +81;
Δ = b2-4ac
Δ = 182-4·1·81
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$g=\frac{-b}{2a}=\frac{-18}{2}=-9$

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