How do you combine like terms in #3n ( 3m + 6) - 3( m ^ { 2} + 4m + 1)#?

1 Answer
Astralboy
Mar 29, 2017

#9mn + 18n -3m²-12m-3#

Explanation:

First, you must distribute to each.

#3n(3m+6)# is #9mn + 18n# when distributed

#-3(m²+4m+1) = -3m²-12m-3#

So now you have:

#9mn + 18n -3m²-12m-3#

There are no other like terms so that's your answer

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