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x-33=5/8x
We move all terms to the left:
x-33-(5/8x)=0
Domain of the equation: 8x)!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
x-(+5/8x)-33=0
We get rid of parentheses
x-5/8x-33=0
We multiply all the terms by the denominator
x*8x-33*8x-5=0
Wy multiply elements
8x^2-264x-5=0
a = 8; b = -264; c = -5;
Δ = b2-4ac
Δ = -2642-4·8·(-5)
Δ = 69856
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}$$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$
The end solution:
$\sqrt{\Delta}=\sqrt{69856}=\sqrt{16*4366}=\sqrt{16}*\sqrt{4366}=4\sqrt{4366}$$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-264)-4\sqrt{4366}}{2*8}=\frac{264-4\sqrt{4366}}{16} $$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-264)+4\sqrt{4366}}{2*8}=\frac{264+4\sqrt{4366}}{16} $
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