-3x2-18x-24=0

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Solution for -3x2-18x-24=0 equation:



-3x^2-18x-24=0
a = -3; b = -18; c = -24;
Δ = b2-4ac
Δ = -182-4·(-3)·(-24)
Δ = 36
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{36}=6$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-18)-6}{2*-3}=\frac{12}{-6} =-2 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-18)+6}{2*-3}=\frac{24}{-6} =-4 $

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