11x2+8x-3=0

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Solution for 11x2+8x-3=0 equation:



11x^2+8x-3=0
a = 11; b = 8; c = -3;
Δ = b2-4ac
Δ = 82-4·11·(-3)
Δ = 196
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{196}=14$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(8)-14}{2*11}=\frac{-22}{22} =-1 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(8)+14}{2*11}=\frac{6}{22} =3/11 $

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