X^2-3x+2=729

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Solution for X^2-3x+2=729 equation:



X^2-3X+2=729
We move all terms to the left:
X^2-3X+2-(729)=0
We add all the numbers together, and all the variables
X^2-3X-727=0
a = 1; b = -3; c = -727;
Δ = b2-4ac
Δ = -32-4·1·(-727)
Δ = 2917
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{-(-3)-\sqrt{2917}}{2*1}=\frac{3-\sqrt{2917}}{2} $
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-3)+\sqrt{2917}}{2*1}=\frac{3+\sqrt{2917}}{2} $

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