Question

2^m+1 . 2^m+2 : 4^m-1

Answer 1

2^m+1 . 2^m+2 : 4^m-1
=2^2m+3 : 2^2(m-1)
=2^2m+3 : 2^2m-2
=2^2m+3-(2m-2)
=2^2m+3-2m+2
=2^5
=32