4x^2+3x-30=0

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Solution for 4x^2+3x-30=0 equation: 



4x^2+3x-30=0

a = 4; b = 3; c = -30;
Δ = b2-4ac
Δ = 32-4·4·(-30)
Δ = 489
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)-\sqrt{489}}{2*4}=\frac{-3-\sqrt{489}}{8}
$


$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(3)+\sqrt{489}}{2*4}=\frac{-3+\sqrt{489}}{8}
$

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