Answer :
[tex]182x^7+182x^{10}[/tex]
Explanation
remember the distributive property
[tex]a(b+c)=ab+ac[/tex]ans some properties of the exponents numbers
[tex]\begin{gathered} a^m\cdot a^n=a^{m+n} \\ (a^m)^n=a^{m\cdot n} \end{gathered}[/tex]Step 1
[tex]\begin{gathered} 14x^{5}\mleft(13x^{2}+13x^{5}\mright) \\ \text{apply distributive property} \\ 14x^5(13x^2+13x^5)=(14x^5\cdot13x^2)+(14x^5\cdot13x^5) \\ 14x^5(13x^2+13x^5)=182x^7+182x^{10} \\ 182x^7+182x^{10} \end{gathered}[/tex]i hope this helps you