x^2-3.5x-11.76=0

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Solution for x^2-3.5x-11.76=0 equation:



x^2-3.5x-11.76=0
a = 1; b = -3.5; c = -11.76;
Δ = b2-4ac
Δ = -3.52-4·1·(-11.76)
Δ = 59.29
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-3.5)-\sqrt{59.29}}{2*1}=\frac{3.5-\sqrt{59.29}}{2} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-3.5)+\sqrt{59.29}}{2*1}=\frac{3.5+\sqrt{59.29}}{2} $

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