Answer:
a^8
Step-by-step explanation:
(a^2a^3)^2*a^4/((a^-1)^-2)^3
(a^(2+3))^2*a^4/(a^(-1*-2))^3
a^(5*2)*a^4/a^(2*3)
a^(10+4)/a^6
a^(14-6)