X^2+6.8x+11.2=0

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Solution for X^2+6.8x+11.2=0 equation: 



X^2+6.8X+11.2=0

a = 1; b = 6.8; c = +11.2;
Δ = b2-4ac
Δ = 6.82-4·1·11.2
Δ = 1.44
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{-(6.8)-\sqrt{1.44}}{2*1}=\frac{-6.8-\sqrt{1.44}}{2}
$


$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(6.8)+\sqrt{1.44}}{2*1}=\frac{-6.8+\sqrt{1.44}}{2}
$

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