x^2/(0.4-x)=1.8*10^-5

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Solution for x^2/(0.4-x)=1.8*10^-5 equation: 



x^2/(0.4-x)=1.8*10^-5

We move all terms to the left:

x^2/(0.4-x)-(1.8*10^-5)=0



Domain of the equation: (0.4-x)!=0

We move all terms containing x to the left, all other terms to the right

-x!=-0.4

x!=-0.4/-1

x!=0.4/1

x∈R



We add all the numbers together, and all the variables

x^2/(-1x+0.4)-(1.8*10^-5)=0

We add all the numbers together, and all the variables

x^2/(-1x+0.4)-5-1.8E=0

We multiply all the terms by the denominator


x^2-5*(-1x+0.4)-(1.8E)*(-1x+0.4)=0

We add all the numbers together, and all the variables

x^2-5*(-1x+0.4)-(4.89290729123)*(-1x+0.4)=0

We multiply parentheses

x^2+5x-(4.89290729123)*(-1x+0.4)-2=0

We move all terms containing x to the left, all other terms to the right

x^2+5x-(4.89290729123)*(-1x+0.4)=2

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