0=-4.9x^2

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Solution for 0=-4.9x^2 equation: 



0=-4.9x^2

We move all terms to the left:

0-(-4.9x^2)=0

We add all the numbers together, and all the variables

-(-4.9x^2)=0

We get rid of parentheses

4.9x^2=0

a = 4.9; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·4.9·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{0}{9.8}=0$

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