3/8e-17-5/9e=11

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Solution for 3/8e-17-5/9e=11 equation:



3/8e-17-5/9e=11
We move all terms to the left:
3/8e-17-5/9e-(11)=0
Domain of the equation: 8e!=0
e!=0/8
e!=0
e∈R
Domain of the equation: 9e!=0
e!=0/9
e!=0
e∈R
We add all the numbers together, and all the variables
3/8e-5/9e-28=0
We calculate fractions
27e/72e^2+(-40e)/72e^2-28=0
We multiply all the terms by the denominator
27e+(-40e)-28*72e^2=0
Wy multiply elements
-2016e^2+27e+(-40e)=0
We get rid of parentheses
-2016e^2+27e-40e=0
We add all the numbers together, and all the variables
-2016e^2-13e=0
a = -2016; b = -13; c = 0;
Δ = b2-4ac
Δ = -132-4·(-2016)·0
Δ = 169
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$e_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$e_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{169}=13$
$e_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-13)-13}{2*-2016}=\frac{0}{-4032} =0 $
$e_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-13)+13}{2*-2016}=\frac{26}{-4032} =-13/2016 $

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