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D( x )
243^(2*x) = 0
243^(2*x) = 0
243^(2*x) = 0
x należy do O
x in (-oo:+oo)
(9^(2*x^2))/(243^(2*x)) = 0
(9^(2*x^2))/(243^(2*x)) = 0 // * 243^(2*x)
9^(2*x^2) = 0
x należy do O
x belongs to the empty set
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