These two phrases have basically the same meaning. Alternate translation: "Moses and Aaron performed God's miracles in Egypt among the descendants of Ham" (See: [[rc://en/ta/man/translate/figs-parallelism]])
The words "they performed" are understood fromt the previous phrase. They may be repeated here. Alternate translation: "and they performed his wonders in the land of Ham" (See: [[rc://en/ta/man/translate/figs-ellipsis]])