10x+1x2=82

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Solution for 10x+1x2=82 equation:



10x+1x^2=82
We move all terms to the left:
10x+1x^2-(82)=0
We add all the numbers together, and all the variables
x^2+10x-82=0
a = 1; b = 10; c = -82;
Δ = b2-4ac
Δ = 102-4·1·(-82)
Δ = 428
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{428}=\sqrt{4*107}=\sqrt{4}*\sqrt{107}=2\sqrt{107}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(10)-2\sqrt{107}}{2*1}=\frac{-10-2\sqrt{107}}{2} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(10)+2\sqrt{107}}{2*1}=\frac{-10+2\sqrt{107}}{2} $

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