A^2+b^2=20^2

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Solution for A^2+b^2=20^2 equation: 



^2+A^2=20^2

We move all terms to the left:

^2+A^2-(20^2)=0

We add all the numbers together, and all the variables

A^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:
$A=\frac{-b}{2a}=\frac{0}{2}=0$

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