Ta có: 202245-202244=202244.(202245-44-1)=202244.(2022-1)=202244.2021
202244-202243=202243.(202244-43-1)=202243.(2022-1)=202243.2021
Vì 202244.2021>202243.2021 nên 202245-202244>202244-202243
\(2022^{45}-2022^{44}=2022^{44}\cdot2021\)
\(2022^{44}-2022^{43}=2022^{43}\cdot2021\)
mà 44>43
nên \(2022^{45}-2022^{44}>2022^{44}-2022^{43}\)