G(x)=-1/3x+4

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Solution for G(x)=-1/3x+4 equation:



(G)=-1/3G+4
We move all terms to the left:
(G)-(-1/3G+4)=0
Domain of the equation: 3G+4)!=0
G∈R
We get rid of parentheses
G+1/3G-4=0
We multiply all the terms by the denominator
G*3G-4*3G+1=0
Wy multiply elements
3G^2-12G+1=0
a = 3; b = -12; c = +1;
Δ = b2-4ac
Δ = -122-4·3·1
Δ = 132
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$G_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$G_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{132}=\sqrt{4*33}=\sqrt{4}*\sqrt{33}=2\sqrt{33}$
$G_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-12)-2\sqrt{33}}{2*3}=\frac{12-2\sqrt{33}}{6} $
$G_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-12)+2\sqrt{33}}{2*3}=\frac{12+2\sqrt{33}}{6} $

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