6x+125=x^2

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Solution for 6x+125=x^2 equation:



6x+125=x^2
We move all terms to the left:
6x+125-(x^2)=0
determiningTheFunctionDomain -x^2+6x+125=0
We add all the numbers together, and all the variables
-1x^2+6x+125=0
a = -1; b = 6; c = +125;
Δ = b2-4ac
Δ = 62-4·(-1)·125
Δ = 536
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:
$\sqrt{\Delta}=\sqrt{536}=\sqrt{4*134}=\sqrt{4}*\sqrt{134}=2\sqrt{134}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(6)-2\sqrt{134}}{2*-1}=\frac{-6-2\sqrt{134}}{-2} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(6)+2\sqrt{134}}{2*-1}=\frac{-6+2\sqrt{134}}{-2} $

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