Respuesta :

Answer:

18x^5 +28x^2

Step-by-step explanation:

20x^2 + 14x^5 + 8x^2 + 4x^5

Combine like terms

20x^2  + 8x^2 + 4x^5+ 14x^5

28x^2 + 18x^5

We usually write the highest power term first

18x^5 +28x^2