4x2-18x+18=0

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Solution for 4x2-18x+18=0 equation:



4x^2-18x+18=0
a = 4; b = -18; c = +18;
Δ = b2-4ac
Δ = -182-4·4·18
Δ = 36
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{36}=6$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-18)-6}{2*4}=\frac{12}{8} =1+1/2 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-18)+6}{2*4}=\frac{24}{8} =3 $

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