Answer:
[tex]3x^4-7x^3+x^2+2x+11[/tex]
Step-by-step explanation:
[tex]3x^2(x^2 - 4x - 2) + (5x^3 + 7x^2 + 2x + 11)[/tex]
First, I will expand the expression [tex]3x^2(x^2 - 4x - 2)[/tex]
[tex]3x^2(x^2 - 4x - 2) \\3x^4-12x^3-6x^2[/tex]
So, we got
[tex]3x^4-12x^3-6x^2+ 5x^3 + 7x^2 + 2x + 11[/tex]
Adding similar elements, we get:
[tex]3x^4-7x^3+x^2+2x+11[/tex]
