Respuesta :

Given expression:

[tex]=a^2(5a-3b)-3a^2[/tex]

Simplifying the expression:

[tex]\begin{gathered} =a^2\times5a-a^2\times3b-3a^2 \\ =5a^3-3a^2b-3a^2 \end{gathered}[/tex]

The final expression is :

[tex]=5a^3-3a^2b-3a^2[/tex]