Respuesta :

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

Answer:

B  3x^2 + 9x + 1

Step-by-step explanation:

Good luck