6x2-3x=x2+2

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Solution for 6x2-3x=x2+2 equation:



6x^2-3x=x2+2
We move all terms to the left:
6x^2-3x-(x2+2)=0
We add all the numbers together, and all the variables
6x^2-(+x^2+2)-3x=0
We get rid of parentheses
6x^2-x^2-3x-2=0
We add all the numbers together, and all the variables
5x^2-3x-2=0
a = 5; b = -3; c = -2;
Δ = b2-4ac
Δ = -32-4·5·(-2)
Δ = 49
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{49}=7$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-3)-7}{2*5}=\frac{-4}{10} =-2/5 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-3)+7}{2*5}=\frac{10}{10} =1 $

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