Respuesta :

TNSKermit

Answer:

4x^2+3x+4

Step-by-step explanation:

Let's simplify step-by-step.

3x2+5x+1x2−2x+4

=3x2+5x+x2+−2x+4

Combine Like Terms:

=3x2+5x+x2+−2x+4

=(3x2+x2)+(5x+−2x)+(4)

=4x2+3x+4

Answer:

=4x2+3x+4

lanickamaria15

Answer:

3x^4+3x+5

Step-by-step explanation:

3x^2 + 5x +1 * x^2 - 2x + 4

3x^2 * x^2 =  3x^4

5x - 2x = 3x

1+4= 5