"FACTORING"

luiz_322

New member
Joined
Apr 13, 2006
Messages
7
i need help in this problem

4m^3-m^2+12m-3

and i tried solvin like this

3m+12m-3=15m-3 but i got it wrong and i dont know where i went wrong

can you please help me in this problem thank you :D :)
 
Hello, luiz_322 !

Factor: \(\displaystyle \,4m^3\,-\,m^2\,+\,12m\,-\,3\)
Usually, with four or more terms, try factoring "by grouping".

Factor them "in pairs": \(\displaystyle \:m^2(\underbrace{4m\,-\,1})\,+\,3(\underbrace{4m\,-\,1})\)
. . . . . . . . . . . . . . . . . . . . . See the common factor?

Factor it out: \(\displaystyle \:(4m\,-\,1)(m^2\,+\,3)\)
 
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