Final answer:
To simplify the expression (3d^2) × (3d^3), we use the properties of powers. By adding the exponents when multiplying terms with the same base, we can simplify 3d^2 × 3d^3 as 9d^5.
Step-by-step explanation:
To simplify the expression (3d^2) × (3d^3), we use the properties of powers. When multiplying two terms with the same base, we add the exponents. Therefore, 3d^2 × 3d^3 can be simplified as 3 × 3 * d^2 * d^3 = 9d^5. So, the correct answer is option D.