2x2-x-12=0

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Solution for 2x2-x-12=0 equation:



2x^2-x-12=0
We add all the numbers together, and all the variables
2x^2-1x-12=0
a = 2; b = -1; c = -12;
Δ = b2-4ac
Δ = -12-4·2·(-12)
Δ = 97
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{-(-1)-\sqrt{97}}{2*2}=\frac{1-\sqrt{97}}{4} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-1)+\sqrt{97}}{2*2}=\frac{1+\sqrt{97}}{4} $

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