10x2+11x+1=0

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Solution for 10x2+11x+1=0 equation:



10x^2+11x+1=0
a = 10; b = 11; c = +1;
Δ = b2-4ac
Δ = 112-4·10·1
Δ = 81
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{81}=9$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(11)-9}{2*10}=\frac{-20}{20} =-1 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(11)+9}{2*10}=\frac{-2}{20} =-1/10 $

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