Answer:
[tex]\large\boxed{10a^2+22a}[/tex]
Step-by-step explanation:
In this question, we're solving for x(a) + w(a).
What this means is that we would be adding both expressions together.
Your expression should look like this:
[tex]a^2 + 2a + 1 + 9a^2 + 20a - 1[/tex]
Solve:
[tex]a^2 + 2a + 1 + 9a^2 + 20a - 1\\\\\text{Combine like terms}\\\\10a^2+2a+1+20a-1\\\\10a^2+22a+1-1\\\\\boxed{10a^2+22a}[/tex]
When you're done solving, you should get 10a²+22a.
This means that 10a²+22a would be the correct answer.
I hope this helped you out.
Good luck on your academics.
Have a fantastic day!
