8x*42x-3=162x

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Solution for 8x*42x-3=162x equation:



8x*42x-3=162x
We move all terms to the left:
8x*42x-3-(162x)=0
We add all the numbers together, and all the variables
-162x+8x*42x-3=0
Wy multiply elements
336x^2-162x-3=0
a = 336; b = -162; c = -3;
Δ = b2-4ac
Δ = -1622-4·336·(-3)
Δ = 30276
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{30276}=174$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-162)-174}{2*336}=\frac{-12}{672} =-1/56 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-162)+174}{2*336}=\frac{336}{672} =1/2 $

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