2/5c=16c

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Solution for 2/5c=16c equation:



2/5c=16c
We move all terms to the left:
2/5c-(16c)=0
Domain of the equation: 5c!=0
c!=0/5
c!=0
c∈R
We add all the numbers together, and all the variables
-16c+2/5c=0
We multiply all the terms by the denominator
-16c*5c+2=0
Wy multiply elements
-80c^2+2=0
a = -80; b = 0; c = +2;
Δ = b2-4ac
Δ = 02-4·(-80)·2
Δ = 640
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$c_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$c_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{640}=\sqrt{64*10}=\sqrt{64}*\sqrt{10}=8\sqrt{10}$
$c_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-8\sqrt{10}}{2*-80}=\frac{0-8\sqrt{10}}{-160} =-\frac{8\sqrt{10}}{-160} =-\frac{\sqrt{10}}{-20} $
$c_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+8\sqrt{10}}{2*-80}=\frac{0+8\sqrt{10}}{-160} =\frac{8\sqrt{10}}{-160} =\frac{\sqrt{10}}{-20} $

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