HELP ME PLS!
i need the first 4 examples
![HELP ME PLS i need the first 4 examples class=](https://us-static.z-dn.net/files/d50/0ca5f4785c16b00501b09093254ee612.jpeg)
Answer:
1) 6а-9b=3(2a-3b)
2)8a-12b=4(2a-3b)
3) 5ab-5ac=5a(b-c)
4) 6ax+6ay=6a(x+y)