3x*7x=0

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Solution for 3x*7x=0 equation: 



3x*7x=0

Wy multiply elements

21x^2=0

a = 21; b = 0; c = 0;
Δ = b2-4ac
Δ = 02-4·21·0
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$x=\frac{-b}{2a}=\frac{0}{42}=0$

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