Respuesta:
[tex](5+5a^{2}-5a^{4})+(6a^{3}-6a^{4}-6a^{2})[/tex]
[tex]-5a^{4}-6a^{4} +6a^{3} +5a^{2} -6a^{2} +5[/tex]
[tex]-11a^{4}+6a^{3}-a^{2}+5[/tex]
