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3(1+x)/4x=1-1/x
We move all terms to the left:
3(1+x)/4x-(1-1/x)=0
Domain of the equation: 4x!=0
x!=0/4
x!=0
x∈R
Domain of the equation: x)!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
3(x+1)/4x-(-1/x+1)=0
We get rid of parentheses
3(x+1)/4x+1/x-1=0
We calculate fractions
(3x^2+3x)/4x^2+4x/4x^2-1=0
We multiply all the terms by the denominator
(3x^2+3x)+4x-1*4x^2=0
We add all the numbers together, and all the variables
4x+(3x^2+3x)-1*4x^2=0
Wy multiply elements
-4x^2+4x+(3x^2+3x)=0
We get rid of parentheses
-4x^2+3x^2+4x+3x=0
We add all the numbers together, and all the variables
-1x^2+7x=0
a = -1; b = 7; c = 0;
Δ = b2-4ac
Δ = 72-4·(-1)·0
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$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(7)-7}{2*-1}=\frac{-14}{-2} =+7 $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(7)+7}{2*-1}=\frac{0}{-2} =0 $
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