x^2-x-1000000=0

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Solution for x^2-x-1000000=0 equation:



x^2-x-1000000=0
We add all the numbers together, and all the variables
x^2-1x-1000000=0
a = 1; b = -1; c = -1000000;
Δ = b2-4ac
Δ = -12-4·1·(-1000000)
Δ = 4000001
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{-(-1)-\sqrt{4000001}}{2*1}=\frac{1-\sqrt{4000001}}{2} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-1)+\sqrt{4000001}}{2*1}=\frac{1+\sqrt{4000001}}{2} $

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