x2+2=6x-6

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Solution for x2+2=6x-6 equation:



x2+2=6x-6
We move all terms to the left:
x2+2-(6x-6)=0
We add all the numbers together, and all the variables
x^2-(6x-6)+2=0
We get rid of parentheses
x^2-6x+6+2=0
We add all the numbers together, and all the variables
x^2-6x+8=0
a = 1; b = -6; c = +8;
Δ = b2-4ac
Δ = -62-4·1·8
Δ = 4
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{4}=2$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-6)-2}{2*1}=\frac{4}{2} =2 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-6)+2}{2*1}=\frac{8}{2} =4 $

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