Answer:

11. 16a+24b+8c

answer : 8(2a+3b+c)

12. 60y^3-30y^2+40y

answer : 10y(6y^2-3y+4)

14. 22m^5+33m^4-11m^3

answer : 11m^3(2m^2+3m-)

Step-by-step explanation:

please if you notice any mistakes , do me a favor and correct me. hope it helps , i couldn't answer the #13 since it confuses me.