Final answer:
To simplify the expression (49 / (5a)) * (10a^3 / (7a)), we can cancel out common factors in the numerator and denominator to get 490a^3.
Step-by-step explanation:
To simplify the expression (49 / (5a)) * (10a^3 / (7a)), we can cancel out common factors in the numerator and denominator. Cancel out the a in the numerator and denominator, as well as the 5 in the numerator and the 7 in the denominator.
What we are left with is:
(49 / (1)) * (10a^3 / (1)) = 490a^3