n^2+11n+16=0

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Solution for n^2+11n+16=0 equation: 



n^2+11n+16=0

a = 1; b = 11; c = +16;
Δ = b2-4ac
Δ = 112-4·1·16
Δ = 57
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$n_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(11)-\sqrt{57}}{2*1}=\frac{-11-\sqrt{57}}{2}
$


$n_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(11)+\sqrt{57}}{2*1}=\frac{-11+\sqrt{57}}{2}
$

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