8x2+20x+12=0

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Solution for 8x2+20x+12=0 equation:



8x^2+20x+12=0
a = 8; b = 20; c = +12;
Δ = b2-4ac
Δ = 202-4·8·12
Δ = 16
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{16}=4$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(20)-4}{2*8}=\frac{-24}{16} =-1+1/2 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(20)+4}{2*8}=\frac{-16}{16} =-1 $

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