Respuesta :

Answer:

=x3+3x2−3x+4

Step-by-step explanation:

Let's simplify step-by-step.

3x2−5x+1xx2+2x+4

=3x2+−5x+x3+2x+4

Combine Like Terms:

=3x2+−5x+x3+2x+4

=(x3)+(3x2)+(−5x+2x)+(4)

=x3+3x2+−3x+4