Final answer:
To simplify the expression 9h⁷ × 7h⁶ × 3h³, you can combine the like terms by adding their exponents. The simplified expression is 189h^16.
Step-by-step explanation:
To simplify the expression 9h⁷ × 7h⁶ × 3h³, we can combine the like terms by adding their exponents. In this case, the terms have the same base, which is h. So, adding the exponents, we get:
9h⁷ × 7h⁶ × 3h³ = (9 × 7 × 3)h^(7+6+3) = 189h^16
Therefore, the simplified expression is 189h^16.