Respuesta:
(13x^9-6)(13x^9+6)
(13x^2)^2 -6^2. =169x^4 -36
es la A) 169
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Respuesta:
(13x^9-6)(13x^9+6)
(13x^2)^2 -6^2. =169x^4 -36
es la A) 169