Respuesta :
All you have to do is combine the like terms and the answer is 6x^4-x^3-5x^2+10x+5
2x^4 + x^3 - 4x^2 + 3 + 4x^4 - 2x^3 - x^2 + 10x + 2
6x^4 - x^3 - 5x^2 + 10x + 5
6x^4 - x^3 - 5x^2 + 10x + 5