x2=-2+3x

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Solution for x2=-2+3x equation:



x2=-2+3x
We move all terms to the left:
x2-(-2+3x)=0
We add all the numbers together, and all the variables
x2-(3x-2)=0
We add all the numbers together, and all the variables
x^2-(3x-2)=0
We get rid of parentheses
x^2-3x+2=0
a = 1; b = -3; c = +2;
Δ = b2-4ac
Δ = -32-4·1·2
Δ = 1
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1}=1$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-3)-1}{2*1}=\frac{2}{2} =1 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-3)+1}{2*1}=\frac{4}{2} =2 $

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