x2+3x+9/4=0

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Solution for x2+3x+9/4=0 equation: 



x2+3x+9/4=0

We add all the numbers together, and all the variables

x^2+3x+9/4=0

We multiply all the terms by the denominator


x^2*4+3x*4+9=0

Wy multiply elements

4x^2+12x+9=0

a = 4; b = 12; c = +9;
Δ = b2-4ac
Δ = 122-4·4·9
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{-12}{8}=-1+1/2$

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