Respuesta :

Answer:

Answer C:[tex]3x(2+3x^{2})[/tex]

Answer D:[tex]4x^{2}(3x-1)[/tex]

Step-by-step explanation:

Question C: [tex]6x+9x^{3}=6x+3x*3x=3x(2+3x^{2})[/tex]

Question D: [tex]12x^{3}-4x^{2}=4x^{2}(3x-1)[/tex]

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