Add: (g2 – 4g4 + 5g + 9) + (–3g3 + 3g2 – 6)

Rewrite terms that are subtracted as addition of the opposite.
g2 + (–4g4) + 5g + 9 + (–3g3) + 3g2 + (–6)
Group like terms.
Combine like terms.
Write the resulting polynomial in standard form.
Complete the steps to find the sum. What is the sum?

–7g4 + 4g3 – 3g2 + 5g – 3
–4g4 – 3g3 + 4g2 + 5g + 3
–4g4 + 4g2 + 14g – 6
–3g4 + 14g – 6