38+x=(3x+2)x

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Solution for 38+x=(3x+2)x equation:



38+x=(3x+2)x
We move all terms to the left:
38+x-((3x+2)x)=0
We calculate terms in parentheses: -((3x+2)x), so:
(3x+2)x
We multiply parentheses
3x^2+2x
Back to the equation:
-(3x^2+2x)
We get rid of parentheses
-3x^2+x-2x+38=0
We add all the numbers together, and all the variables
-3x^2-1x+38=0
a = -3; b = -1; c = +38;
Δ = b2-4ac
Δ = -12-4·(-3)·38
Δ = 457
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{-(-1)-\sqrt{457}}{2*-3}=\frac{1-\sqrt{457}}{-6} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-1)+\sqrt{457}}{2*-3}=\frac{1+\sqrt{457}}{-6} $

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