Answer:
4^12
Step-by-step explanation:
4^4 * 4^8
When we are multiplying power with the same base, we can add the powers
a^b * a^c = a^ (b+c)
4^(4+8)
The rule you use is a^b*a^c = a^(b+c). You add the exponents and keep the base the same. This rule cannot be used if you are multiplying two exponential expressions with different bases.
In this case, a = 4, b = 4, c = 8.
