Answer:
81x^4
Step-by-step explanation:
With exponents, whatever is in the parentheses is multiplied by itself however many times the exponent says.
In this case, you would be solving 3 x 3 x 3 x 3 and (x)^4.
3^4 = 81 with x^4 gives you:
81x^4
Hope this helps you :)
