Respuesta :

Answer:

[tex]4x^{5}z^{8}[/tex]

Step-by-step explanation:

[tex]x^{n} *x^{y} =x^{x+y}[/tex]

[tex]xz^{3}*4x^{4}z^{5}=4x^{5}z^{8}[/tex]

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