4n 9 =( 5 2n July 8, 2019 16 32 64 128 4n 9 2 5 2n 4n 9 2 5 2n answer 4n 9 2 5 2n how many solutions 4n 9 2 5 2n solve 4n 9 2 5 2n solution 9-4n 5
