(p+7)*(p+7)=0

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Solution for (p+7)*(p+7)=0 equation: 



(p+7)(p+7)=0

We multiply parentheses ..

(+p^2+7p+7p+49)=0

We get rid of parentheses

p^2+7p+7p+49=0

We add all the numbers together, and all the variables

p^2+14p+49=0

a = 1; b = 14; c = +49;
Δ = b2-4ac
Δ = 142-4·1·49
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$p=\frac{-b}{2a}=\frac{-14}{2}=-7$

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