Answer:
x^2 +9x +1
Step-by-step explanation:
(5x-2+3x^2)+(4x+3)
Writing in decreasing order so we can combine like terms
3x^2 +5x+4x-2+3
Add and subtract like terms
3x^2 +9x +1
B 3x^2 + 9x + 1
Good luck
