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2/3c=8c=9
We move all terms to the left:
2/3c-(8c)=0
Domain of the equation: 3c!=0We add all the numbers together, and all the variables
c!=0/3
c!=0
c∈R
-8c+2/3c=0
We multiply all the terms by the denominator
-8c*3c+2=0
Wy multiply elements
-24c^2+2=0
a = -24; b = 0; c = +2;
Δ = b2-4ac
Δ = 02-4·(-24)·2
Δ = 192
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}$$c_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{192}=\sqrt{64*3}=\sqrt{64}*\sqrt{3}=8\sqrt{3}$$c_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-8\sqrt{3}}{2*-24}=\frac{0-8\sqrt{3}}{-48} =-\frac{8\sqrt{3}}{-48} =-\frac{\sqrt{3}}{-6} $$c_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+8\sqrt{3}}{2*-24}=\frac{0+8\sqrt{3}}{-48} =\frac{8\sqrt{3}}{-48} =\frac{\sqrt{3}}{-6} $
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