Answer:
7 x^2 + 11 x + 8
Explanation:
Simplify the following:
4 x^2 + 3 x^2 + 6 x + 5 x - 1 + 9
Grouping like terms, 4 x^2 + 3 x^2 + 6 x + 5 x - 1 + 9 = (3 x^2 + 4 x^2) + (6 x + 5 x) + (-1 + 9):
(3 x^2 + 4 x^2) + (6 x + 5 x) + (-1 + 9)
3 x^2 + 4 x^2 = 7 x^2:
7 x^2 + (6 x + 5 x) + (-1 + 9)
6 x + 5 x = 11 x:
7 x^2 + 11 x + (-1 + 9)
9 - 1 = 8:
Answer: 7 x^2 + 11 x + 8