Factor 3a^3b + 21a^2b + 3ab?

I dont know if my brain is fried or what but i wanna cry right now lol. anyone know why this is not working???

2012-12-08T23:23:17Z

Good answers, thank you. :)

Fazaldin A2012-12-08T23:12:05Z

Favorite Answer

Factor : 3a^3b + 21a^2b + 3ab?

3a^3b + 21a^2b + 3ab = 3ab(a^2 + 7a + 1) >=============< ANSWER
OR,
3a^3b + 21a^2b + 3ab = 3ab(a+6.855)(a+0.355) >===========< ANSWER

Greywolf2012-12-08T23:07:04Z

3ab is in common so factor it out

3ab( a^2+7a+1)

?2012-12-09T01:36:44Z

3ab ( a^2 +7a +1 )

Moon2012-12-08T23:20:25Z

3a^3b + 21a^2b + 3ab
= 3ab(a^2 + 7a + 1)
..........
thats all