4x2-5x-10=0

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Solution for 4x2-5x-10=0 equation:



4x^2-5x-10=0
a = 4; b = -5; c = -10;
Δ = b2-4ac
Δ = -52-4·4·(-10)
Δ = 185
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{-(-5)-\sqrt{185}}{2*4}=\frac{5-\sqrt{185}}{8} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-5)+\sqrt{185}}{2*4}=\frac{5+\sqrt{185}}{8} $

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