x^2-43x+30=0

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Solution for x^2-43x+30=0 equation:



x^2-43x+30=0
a = 1; b = -43; c = +30;
Δ = b2-4ac
Δ = -432-4·1·30
Δ = 1729
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{-(-43)-\sqrt{1729}}{2*1}=\frac{43-\sqrt{1729}}{2} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-43)+\sqrt{1729}}{2*1}=\frac{43+\sqrt{1729}}{2} $

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