So the expression is: [tex]4 a^{2} + 2a + 4 a^{2} - 5[/tex]
You can combine like terms, which are terms that contain the same variables raised to the same power. That means you can combine the two [tex]4 a^{2}[/tex]. [tex]4 a^{2} + 4 a^{2} = 8 a^{2}[/tex] The other terms can't be combined.
Your final answer should be [tex]8 a^{2} +2a-5[/tex].
