Answer:
3 a^(-2)
3 / a^2
Step-by-step explanation:
(3a) (a^-3)
Multiply
3 a^1 * a^-3
Since we are multiplying, we add the exponents
3 a^ ( 1-3)
If you are not supposed to leave a negative exponent
x^-b = 1 / x^b
