Answer:
11
Step-by-step explanation:
Q = 3^(x+2) + 3^(x+1) + 3^x/3^x
= 3^x * 3² + 3^x*3 + 3^x/3^x (a^(b+c) = a^b* a^c)
= 3^x(3²+3+1)/3^x = 9+4 = 11
