M7MBA Moderator View User Profile Posts: 2058 Joined: Sun Oct 29, 2017 4:24 am Thanked: 1 times Followed by:5 members If \(X\) is an integer, does \(7^X+9^{X+3}\) end with a \(0?\) by M7MBA » Sun Nov 28, 2021 1:44 am Timer 00:00 Your Answer A B C D E Global Stats If \(X\) is an integer, does \(7^X+9^{X+3}\) end with a \(0?\) 1) \(2^X\) is odd. 2) \(2X+2\) is even. Answer: A Source: e-GMAT Top Quote
