8w2+2w=4w+1

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Solution for 8w2+2w=4w+1 equation:



8w^2+2w=4w+1
We move all terms to the left:
8w^2+2w-(4w+1)=0
We get rid of parentheses
8w^2+2w-4w-1=0
We add all the numbers together, and all the variables
8w^2-2w-1=0
a = 8; b = -2; c = -1;
Δ = b2-4ac
Δ = -22-4·8·(-1)
Δ = 36
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$w_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$w_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{36}=6$
$w_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-2)-6}{2*8}=\frac{-4}{16} =-1/4 $
$w_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-2)+6}{2*8}=\frac{8}{16} =1/2 $

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