Answer:
x^9
Step-by-step explanation:
x^3 ^4 * x^-3
We know that a^b^c = a^ (b*c)
x^3^4 =x^(3*4) = x^12
x^12 * x^-3
We know that a^b * a^c = a^(b-c)
x^(12-3)
