W=20n*0.5n

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Solution for W=20n*0.5n equation: 



=20W*0.5W

We move all terms to the left:

-(20W*0.5W)=0

We add all the numbers together, and all the variables

-(+20W*0.5W)=0

We get rid of parentheses

-20W*0.5W=0

Wy multiply elements

0W^2=0

We add all the numbers together, and all the variables

W^2=0

a = 1; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·1·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$W=\frac{-b}{2a}=\frac{0}{2}=0$

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