11x2-18x+2=0

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Solution for 11x2-18x+2=0 equation:



11x^2-18x+2=0
a = 11; b = -18; c = +2;
Δ = b2-4ac
Δ = -182-4·11·2
Δ = 236
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{236}=\sqrt{4*59}=\sqrt{4}*\sqrt{59}=2\sqrt{59}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-18)-2\sqrt{59}}{2*11}=\frac{18-2\sqrt{59}}{22} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-18)+2\sqrt{59}}{2*11}=\frac{18+2\sqrt{59}}{22} $

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