Answer: a^4 b^2 x^4
Step-by-step explanation:
The exponent "product rule" tells us you, when multiplying two powers that have the same base, you can add the exponents.
so
a^3 b^2 x^4 a^1
a^3 and a^1 have the same base of a. So, add 3 + 1 for 4
