Express/simplify as a single log

[(3/2)ln4x^6]-[(4/5)ln2y^10]

book answer is 2^(11/5)x^9/y^8

my answer is (8x^9)/[(16^1/5)y^8]

I need to simplify 8/[16^(1/5)] to get to 2^(11/5)/1 which equals 2^(11/5)x^9/y^8

I'm oblivious as to how this is achieved, please help.