Answer:
Step-by-step explanation:
exponent rule : a^b * a^c = a^(b + c).....so when they have the same base, keep the base and add the exponents. And just so you know, that first lone 3 has an exponent of 1.
3^1 * 3^2 * 3^3 = 3^(1 + 2 + 3) = 3^6 = 729
or this way...
3 * 3^2 * 3^3 = 3 * 9 * 27 = 729