11x^2+85x+56=0

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Solution for 11x^2+85x+56=0 equation:



11x^2+85x+56=0
a = 11; b = 85; c = +56;
Δ = b2-4ac
Δ = 852-4·11·56
Δ = 4761
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{4761}=69$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(85)-69}{2*11}=\frac{-154}{22} =-7 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(85)+69}{2*11}=\frac{-16}{22} =-8/11 $

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