n^2=2.25n2=2.25

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Solution for n^2=2.25n2=2.25 equation: 



n^2=2.25n^2=2.25

We move all terms to the left:

n^2-(2.25n^2)=0

We get rid of parentheses

n^2-2.25n^2=0

We add all the numbers together, and all the variables

-1.25n^2=0

a = -1.25; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·(-1.25)·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$n=\frac{-b}{2a}=\frac{0}{-2.5}=0$

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