Simplify and write answer in standard form.

Answer:
[tex]x^3+8x^2+2x+1[/tex]
Step-by-step explanation:
Combine like terms (terms with the same exponent).
[tex]x^3+(3x^2+5x^2)+(x+x)+1=x^3+8x^2+2x+1[/tex]
"Standard form" means to list terms so the exponents go from high to low (descending order).