Answer:
The correct answer is D
[tex]=4x^4-3x^3+3x^2 -3x+1[/tex]
Step-by-step explanation:
The given polynomial is,
[tex](x^4+2x^2-5x)+(-3x^3+x^2+1)+(3x^4+2x)[/tex]
In order to simplify this polynomial, we must group like terms to obtain,
[tex]=x^4+3x^4-3x^3 +2x^2 +x^2 -5x+2x+1[/tex]
Simplify to get,
[tex]=4x^4-3x^3+3x^2 -3x+1[/tex]
Therefore the correct option is D.
