please cuman 5 pertanyaan tolong di jwab ya.. 1.(3x+7) (2x-5) 2.(7x-3) (7x+3) 3.(2a-b) (3a-4b) 4.(4a-3) (2a-3) 5.(3a-3) (2b-4)

please cuman 5 pertanyaan tolong di jwab ya..

1.(3x+7) (2x-5)
2.(7x-3) (7x+3)
3.(2a-b) (3a-4b)
4.(4a-3) (2a-3)
5.(3a-3) (2b-4)