Respuesta :

In general,

[tex]\begin{gathered} (fg)(x)=f(x)*g(x) \\ \end{gathered}[/tex]

Thus, in our case,

[tex]\Rightarrow(fg)(x)=(3x+5)*(x^2)=3x^3+5x^2[/tex]

Therefore, the answer is 3x^3+5x^2, the fourth option (top to bottom).

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