^ - степень
[ 4^(4m-5) * (1/6)^ (-2m) ] / [96 ^ (2m-3)] =
= [ 4^(4m -5) * 6^(2m) ] / [ (16*6)^(2m-3) ] =
= [ 4^(4m-5) * 6^(2m) ] / [ (4^2)^(2m-3 ) * 6^(2m-3) ]=
= 4^(4m-5 - (4m - 6) ) * 6^(2m - (2m-3))=
= 4^(4m -5 -4m +6) * 6^(2m-2m+3) =
= 4^1 * 6^3 = 4 *216 = 864