2^2×3×5^2
=(2*5)^2*3
=10^2*3
=300
2^4×3^2×5^3
=2*2^3*3^2*5^3
=(2*5)^3*2*9
=18*10^3
=18000
(2).(abc)^n=a^n*b^n*c^n