To simplify the expression \( x^3(2 + y^5) \), we apply the distributive property, which involves multiplying \( x^3 \) by each term inside the parentheses:
\[ x^3(2 + y^5) = x^3 \cdot 2 + x^3 \cdot y^5 \]
This gives us:
\[ 2x^3 + x^3y^5 \]
Now we compare this with the provided responses to find an equivalent expression. The correct choice among the given options is:
\[ 2x^3 + x^3y^5 \]
So the answer is:
2x3 + x3y5 (2 x cubed plus x cubed y to the 5th)