19 (7x + 2) • (x + 1)
20 ax + 2ay - 5xb - 10
21 (x - 1) • (2x - 1)
22 (3x - 1) • (x + 5)
23 (12r + 11s) • (12r - 11s)
24 (7x - 9) • (x + 5)
wouldve done work but ots too much hope you dont mind
