6x2-7x-9=0

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Solution for 6x2-7x-9=0 equation:



6x^2-7x-9=0
a = 6; b = -7; c = -9;
Δ = b2-4ac
Δ = -72-4·6·(-9)
Δ = 265
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{-(-7)-\sqrt{265}}{2*6}=\frac{7-\sqrt{265}}{12} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-7)+\sqrt{265}}{2*6}=\frac{7+\sqrt{265}}{12} $

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