Answer:
12x + 19
Explanation:
Add the exponents and then add the numbers.
12x+19
First you would find the like terms. There is 9x and 3x, and 5, 2, 4, and 8. If you combine 9x and 3x, you get 12x, and if you combine 5, 2, 4, and 8, you get 19. You then combine your two answers to get 12x+19.
4.4m questions
5.7m answers