3x^2+x-6-1=0

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Solution for 3x^2+x-6-1=0 equation:



3x^2+x-6-1=0
We add all the numbers together, and all the variables
3x^2+x-7=0
a = 3; b = 1; c = -7;
Δ = b2-4ac
Δ = 12-4·3·(-7)
Δ = 85
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{85}}{2*3}=\frac{-1-\sqrt{85}}{6} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(1)+\sqrt{85}}{2*3}=\frac{-1+\sqrt{85}}{6} $

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