4x2-11x-3=0

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Solution for 4x2-11x-3=0 equation:



4x^2-11x-3=0
a = 4; b = -11; c = -3;
Δ = b2-4ac
Δ = -112-4·4·(-3)
Δ = 169
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{169}=13$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-11)-13}{2*4}=\frac{-2}{8} =-1/4 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-11)+13}{2*4}=\frac{24}{8} =3 $

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